10-letter words starting with I
Embark on a linguistic journey with words that begin with the letter I. This section showcases how I at the start shapes the identity and sound of various words. From commonly used terms to rare finds, explore the diverse range of words that start with I, enriching your vocabulary and appreciation for language.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| interested | 11 | involved in or affected by or having a claim to or share in | the interested parties met to discuss the business |
| impossible | 16 | totally unlikely | - |
| incredible | 15 | beyond belief or understanding | at incredible speed |
| impressive | 17 | producing a strong effect | gave an impressive performance as Othello |
| indistinct | 13 | not clearly defined or easy to perceive or understand | indistinct shapes in the gloom |
| impression | 14 | a concavity in a surface produced by pressing | he left the impression of his fingers in the soft mud |
| individual | 15 | characteristic of or meant for a single person or thing | an individual serving |
| invitation | 13 | a request (spoken or written) to participate or be present or take part in something | an invitation to lunch |
| incredibly | 18 | not easy to believe | incredibly, she survived the crash |
| introduced | 14 | - | - |
| investment | 15 | money that is invested with an expectation of profit | - |
| identified | 15 | having the identity known or established | the identified bodies were released for burial |
| importance | 16 | a prominent status | a person of importance |
| instrument | 12 | write an instrumental score for | - |
| industrial | 11 | employed in industry | the industrial classes |
| inevitable | 15 | an unavoidable event | don't argue with the inevitable |
| inspection | 14 | a formal or official examination | we had to wait for the inspection before we could use the elevator |
| instructor | 12 | a person whose occupation is teaching | - |
| increasing | 13 | becoming greater or larger | increasing prices |
| initiative | 13 | serving to set in motion | the initiative phase in the negotiations |
| irrelevant | 13 | having no bearing on or connection with the subject at issue | an irrelevant comment |
| invincible | 17 | incapable of being overcome or subdued | an invincible army |
| imprisoned | 15 | being in captivity | - |
| incomplete | 16 | not yet finished | his thesis is still incomplete |
| influenced | 16 | - | - |
| irritating | 11 | (used of physical stimuli) serving to stimulate or excite | - |
| indication | 13 | something that serves to indicate or suggest | an indication of foul play |
| intriguing | 12 | disturbingly provocative | an intriguing smile |
| illiterate | 10 | a person unable to read | - |
| irrational | 10 | a real number that cannot be expressed as a rational number | - |
| indigenous | 12 | originating where it is found | the Ainu are indigenous to the northernmost islands of Japan |
| ingredient | 12 | food that is a component of a mixture in cooking | - |
| infiltrate | 13 | enter a group or organization in order to spy on the members | The student organization was infiltrated by a traitor |
| initiation | 10 | wisdom as evidenced by the possession of knowledge | his dullness was due to lack of initiation |
| intimidate | 13 | make timid or fearful | Her boss intimidates her |
| infectious | 15 | caused by infection or capable of causing infection | - |
| inevitably | 18 | by necessity | - |
| internship | 15 | the position of a medical intern | - |
| indicating | 14 | - | - |
| imperative | 17 | a mood that expresses an intention to influence the listener's behavior | - |
| innovative | 16 | being or producing something like nothing done or experienced or created before | stylistically innovative works |
| impeccable | 20 | without fault or error | speaks impeccable French |
| ironically | 15 | in an ironic manner | she began to mimic him ironically |
| invaluable | 15 | having incalculable monetary, intellectual, or spiritual worth | - |
| indictment | 15 | a formal document written for a prosecuting attorney charging a person with some offense | - |
| integrated | 12 | formed or united into a whole | - |
| inadequate | 20 | of insufficient quantity to meet a need | an inadequate income |
| insecurity | 15 | the anxiety you experience when you feel vulnerable and insecure | - |
| infidelity | 17 | the quality of being unfaithful | - |
| insatiable | 12 | impossible to satisfy | an insatiable demand for old buildings to restore |
| interstate | 10 | one of the system of highways linking major cities in the 48 contiguous states of the United States | - |
| innovation | 13 | a creation (a new device or process) resulting from study and experimentation | - |
| indulgence | 14 | an inability to resist the gratification of whims and desires | - |
| immaculate | 16 | without fault or error | timing and technique were immaculate |
| implicated | 17 | culpably involved | named three officials implicated in the plot |
| interfered | 14 | - | - |
| imaginable | 15 | capable of being imagined | - |
| infinitely | 16 | continuing forever without end | there are infinitely many possibilities |
| illuminate | 12 | make free from confusion or ambiguity; make clear | - |
| improvised | 18 | done or made using whatever is available | crossed the river on improvised bridges |
| internally | 13 | on or from the inside | an internally controlled environment |
| irrigation | 11 | (medicine) cleaning a wound or body organ by flushing or washing out with water or a medicated solution | - |
| intervened | 14 | - | - |
| initiating | 11 | - | - |
| intolerant | 10 | narrow-minded about cherished opinions | - |
| intimately | 15 | in a close manner | the two phenomena are intimately connected |
| insulation | 10 | insulating material that reduces or prevents the transmission of heat or sound or electricity | - |
| indirectly | 16 | not in a forthright manner | he answered very indirectly |
| inherently | 16 | in an inherent manner | the subject matter is sexual activity of any overt kind, which is depicted as inherently desirable and exciting |
| indisposed | 14 | somewhat ill or prone to illness | feeling a bit indisposed today |
| installing | 11 | the act of installing something (as equipment) | - |
| idealistic | 13 | of or relating to the philosophical doctrine of the reality of ideas | - |
| impatience | 16 | a lack of patience; irritation with anything that causes delay | - |
| illustrate | 10 | clarify by giving an example of | - |
| irritation | 10 | unfriendly behavior that causes anger or resentment | - |
| improbable | 18 | not likely to be true or to occur or to have occurred | an improbable event |
| inquisitor | 19 | a questioner who is excessively harsh | - |
| indiscreet | 13 | lacking discretion; injudicious | her behavior was indiscreet at the very best |
| infatuated | 14 | marked by foolish or unreasoning fondness | he was infatuated with her |
| inaccurate | 14 | not accurate | an inaccurate translation |
| inflatable | 15 | designed to be filled with air or gas | an inflatable mattress |
| instalment | 12 | a part of a broadcast serial | - |
| incendiary | 16 | a criminal who illegally sets fire to property | - |
| indecisive | 16 | characterized by lack of decision and firmness | an indecisive manager brought the enterprise to a standstill |
| inoperable | 14 | not able to perform its normal function | - |
| infallible | 15 | incapable of failure or error | an infallible antidote |
| intangible | 13 | incapable of being perceived by the senses especially the sense of touch | the intangible constituent of energy |
| insightful | 17 | exhibiting insight or clear and deep perception | an insightful parent |
| instigated | 12 | - | - |
| incestuous | 12 | resembling incest as by excessive intimacy | - |
| instituted | 11 | - | - |
| imposition | 14 | the act of imposing something (as a tax or an embargo) | - |
| innocently | 15 | in a not unlawful manner | he claimed to have purchased the contraband innocently |
| invariably | 18 | without variation or change, in every case | - |
| indicative | 16 | (usually followed by `of') pointing out or revealing clearly | actions indicative of fear |
| injunction | 19 | (law) a judicial remedy issued in order to prohibit a party from doing or continuing to do a certain activity | injunction were formerly obtained by writ but now by a judicial order |
| inaugurate | 11 | commence officially | - |
| insistence | 12 | continual and persistent demands | - |
| internment | 12 | the act of confining someone in a prison (or as if in a prison) | - |
| impediment | 17 | any structure that makes progress difficult | - |
| infraction | 15 | a crime less serious than a felony | - |
| immaterial | 14 | without material form or substance | - |
| impersonal | 14 | having no personal preference | impersonal criticism |
| informally | 18 | with the use of colloquial expressions | - |
| infuriated | 14 | marked by extreme anger | infuriated onlookers charged the police who were beating the boy |
| intestinal | 10 | of or relating to or inside the intestines | intestinal disease |
| immorality | 17 | morally objectionable behavior | - |
| incoherent | 15 | unable to express yourself clearly or fluently | incoherent with grief |
| impressing | 15 | - | - |
| insurgency | 16 | an organized rebellion aimed at overthrowing a constituted government through the use of subversion and armed conflict | - |
| inflexible | 22 | incapable of adapting or changing to meet circumstances | an inflexible law |
| impervious | 17 | not admitting of passage or capable of being affected | a material impervious to water |
| inheriting | 14 | having the legal right to inherit | - |
| immigrated | 16 | - | - |
| indefinite | 14 | not decided or not known | were indefinite about their plans |
| inhalation | 13 | the act of inhaling; the drawing in of air (or other gases) as in breathing | - |
| incidental | 13 | not of prime or central importance | - |
| impairment | 16 | a symptom of reduced quality or strength | - |
| inequality | 22 | lack of equality | the growing inequality between rich and poor |
| inebriated | 13 | stupefied or excited by a chemical substance (especially alcohol) | helplessly inebriated |
| institutes | 10 | - | - |
| illuminati | 12 | - | - |
| incinerate | 12 | cause to undergo combustion | - |
| inadequacy | 25 | lack of an adequate quantity or number | the inadequacy of unemployment benefits |
| incubation | 14 | sitting on eggs so as to hatch them by the warmth of the body | - |
| improperly | 19 | in an improper way | he checked whether the wound had healed improperly |
| inhabitant | 15 | a person who inhabits a particular place | - |
| immaturity | 17 | not having reached maturity | - |
| indecision | 13 | the trait of irresolution; a lack of firmness of character or purpose | - |
| implacable | 18 | incapable of being placated | an implacable enemy |
| impregnate | 15 | fill, as with a certain quality | - |
| impresario | 14 | a sponsor who books and stages public entertainments | - |
| impossibly | 19 | to a degree impossible of achievement | long thought to be an impossibly difficult operation |
| inhibition | 15 | (psychology) the conscious exclusion of unacceptable thoughts or desires | - |
| inhumanity | 18 | the quality of lacking compassion or consideration for others | - |
| impassable | 16 | incapable of being passed | - |
| implicitly | 19 | without ever expressing so clearly | he implicitly assumes that you know the answer |
| intonation | 10 | rise and fall of the voice pitch | - |
| irradiated | 12 | - | - |
| impeccably | 23 | flawlessly | the film was impeccably authentic |
| inexorably | 22 | in an inexorable manner | time marches on inexorably |
| icebreaker | 18 | a ship with a reinforced bow to break up ice and keep channels open for navigation | - |
| immemorial | 16 | long past; beyond the limits of memory or tradition or recorded history | time immemorial |
| incapacity | 19 | lack of intellectual power | - |
| inimitable | 14 | defying imitation; matchless | an inimitable style |
| infarction | 15 | localized necrosis resulting from obstruction of the blood supply | - |
| intertwine | 13 | spin, wind, or twist together | intertwine the ribbons |
| ionosphere | 15 | the outer region of the Earth's atmosphere; contains a high concentration of free electrons | - |
| inbreeding | 14 | the act of mating closely related individuals | - |
| inoculated | 13 | - | - |
| instigator | 11 | someone who deliberately foments trouble | she was the instigator of their quarrel |
| imprinting | 15 | a learning process in early life whereby species specific patterns of behavior are established | - |
| inordinate | 11 | beyond normal limits | a book of inordinate length |
| inexorable | 19 | impervious to pleas, persuasion, requests, reason | Cynthia was inexorable; she would have none of him |
| illiteracy | 15 | an inability to read | - |
| imaginings | 14 | - | - |
| insinuated | 11 | - | - |
| insolvency | 18 | the lack of financial resources | - |
| intubation | 12 | the insertion of a cannula or tube into a hollow body organ | - |
| interwoven | 16 | linked or locked closely together as by dovetailing | - |
| invalidate | 14 | declare invalid | - |
| irreverent | 13 | not revering god | - |
| illegality | 14 | unlawfulness by virtue of violating some legal statute | - |
| indentured | 12 | bound by contract | - |
| indecently | 16 | in an indecent manner | she was rather indecently dressed |
| intimation | 12 | a slight suggestion or vague understanding | - |
| invocation | 15 | a prayer asking God's help as part of a religious service | - |
| inactivity | 18 | a disposition to remain inactive or inert | - |
| ingratiate | 11 | gain favor with somebody by deliberate efforts | - |
| infliction | 15 | something or someone that causes trouble; a source of unhappiness | he's not a friend, he's an infliction |
| intoxicate | 19 | make drunk (with alcoholic drinks) | - |
| immobility | 19 | remaining in place | - |
| incarnated | 13 | - | - |
| indelicate | 13 | lacking propriety and good taste in manners and conduct | - |
| iniquitous | 19 | characterized by iniquity; wicked because it is believed to be a sin | iniquitous deeds |
| insensible | 12 | barely able to be perceived | an almost insensible change |
| inseminate | 12 | place seeds in or on (the ground) | - |
| ineligible | 13 | not eligible | ineligible to vote |
| infinitive | 16 | the uninflected form of the verb | - |
| inveterate | 13 | in a habitual and longstanding manner | - |
| immobilize | 25 | to hold fast or prevent from moving | - |
| imbalanced | 17 | being or thrown out of equilibrium | - |
| incitement | 14 | an act of urging on or spurring on or rousing to action or instigating | the incitement of mutiny |
| inconstant | 12 | likely to change frequently often without apparent or cogent reason; variable | inconstant affections |
| infrasound | 14 | - | - |
| inviolable | 15 | immune to attack; incapable of being tampered with | fortifications that made the frontier inviolable |
| identifier | 14 | a symbol that establishes the identity of the one bearing it | - |
| impalement | 16 | the act of piercing with a sharpened stake as a form of punishment or torture | - |
| infrequent | 22 | not frequent; not occurring regularly or at short intervals | infrequent outbursts of temper |
| inflection | 15 | a manner of speaking in which the loudness or pitch or tone of the voice is modified | - |
| insulating | 11 | - | - |
| interfaith | 16 | involving persons of different religious faiths | an interfaith marriage |
| invigorate | 14 | impart vigor, strength, or vitality to | - |
| indecorous | 13 | not in keeping with accepted standards of what is right or proper in polite society | indecorous behavior |
| immolation | 14 | killing or offering as a sacrifice | - |
| impounding | 16 | placing private property in the custody of an officer of the law | - |
| ineptitude | 13 | unskillfulness resulting from a lack of training | - |
| intimating | 13 | - | - |
| interceded | 14 | - | - |
| interfaced | 16 | - | - |
| ironmonger | 13 | a store selling hardware | in Great Britain they used to call a hardware store an ironmonger's shop |
| incubating | 15 | - | - |
| interposed | 13 | - | - |
| interloper | 12 | someone who intrudes on the privacy or property of another without permission | - |
| interferon | 13 | an antiviral protein produced by cells that have been invaded by a virus; inhibits replication of the virus | - |
| ideologist | 12 | an advocate of some ideology | - |
| iconoclast | 14 | a destroyer of images used in religious worship | - |
| imbecility | 19 | a stupid mistake | - |
| indictable | 15 | liable to be accused, or cause for such liability | an indictable offense |
| indiscrete | 13 | not divided or divisible into parts | layers that were fused into an indiscrete mass |
| impudently | 18 | in an impudent or impertinent manner | a lean, swarthy fellow was peering through the window, grinning impudently |
| injunctive | 22 | - | - |
| innovating | 14 | - | - |
| initialize | 19 | assign an initial value to a computer program | - |
| inexistent | 17 | - | - |
| inducement | 15 | a positive motivational influence | - |
| infighting | 18 | - | - |
| instilling | 11 | teaching or impressing upon the mind by frequent instruction or repetition | - |
| interlaced | 13 | having a pattern of fretwork or latticework | - |
| irrigating | 12 | - | - |
| idiopathic | 18 | (of diseases) arising from an unknown cause | idiopathic epilepsy |
| ignorantly | 14 | in ignorance; in an ignorant manner | they lived ignorantly in their own small world |
| idealizing | 21 | - | - |
| immaturely | 17 | in an immature manner | his teenage son still behaves very immaturely |
| incumbency | 21 | the term during which some position is held | - |
| imprudence | 17 | a lack of caution in practical affairs | - |
| importuned | 15 | - | - |
| inhibitory | 18 | restrictive of action | an overly strict and inhibitory discipline |
| insolently | 13 | in an insolent manner | he had replied insolently to his superiors |
| infamously | 18 | - | - |
| intoxicant | 19 | a liquor or brew containing alcohol as the active agent | - |
| inundation | 11 | an overwhelming number or amount | - |
| iridescent | 13 | varying in color when seen in different lights or from different angles | a dragonfly hovered, vibrating and iridescent |
| isometrics | 14 | muscle-building exercises (or a system of musclebuilding exercises) involving muscular contractions against resistance without movement (the muscles contracts but the length of the muscle does not change) | - |
| immobilise | 16 | to hold fast or prevent from moving | - |
| imminently | 17 | in an imminent manner | - |
| incivility | 18 | deliberate discourtesy | - |
| incautious | 12 | carelessly failing to exercise proper caution | an incautious step sent her headlong down the stairs |
| inculcated | 15 | - | - |
| immoderate | 15 | beyond reasonable limits | immoderate laughter |
| immodestly | 18 | without modesty; in an immodest manner | the book was entitled, immodestly, `All about Wisdom' |
| interspace | 14 | - | - |
| invalidity | 17 | illogicality as a consequence of having a conclusion that does not follow from the premisses | - |
| intramural | 12 | carried on within the bounds of an institution or community | most of the students participated actively in the college's intramural sports program |
| insurgence | 13 | an organized rebellion aimed at overthrowing a constituted government through the use of subversion and armed conflict | - |
| interbreed | 13 | breed animals or plants using parents of different races and varieties | these species do not interbreed |
| irresolute | 10 | uncertain how to act or proceed | the committee was timid and mediocre and irresolute |
| invitingly | 17 | in a tantalizing manner | - |
| ionisation | 10 | the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas | - |
| ionization | 19 | the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas | - |
| intermural | 12 | between two or more institutions etc | an intermural track meet |
| inaccuracy | 19 | the quality of being inaccurate and having errors | - |
| inarguably | 16 | in an unarguable and undisputed manner | you write as if this fact whilst inarguably forever condemning me to the ranks of Bohemianism nevertheless earned for me the right of entry into any company |
| indelicacy | 18 | an impolite act or expression | - |
| impartment | 16 | - | - |
| impalpable | 18 | incapable of being perceived by the senses especially the sense of touch | - |
| improbably | 21 | not easy to believe | - |
| improviser | 17 | - | - |
| imputation | 14 | a statement attributing something dishonest (especially a criminal offense) | he denied the imputation |
| impolitely | 17 | in an impolite manner | he treated her impolitely |
| innumerous | 12 | too numerous to be counted | - |
| initialled | 11 | - | - |
| insensibly | 15 | in a numb manner; without feeling | - |
| indulgency | 17 | - | - |
| infringing | 15 | - | - |
| inglorious | 11 | (used of conduct or character) deserving or bringing disgrace or shame | inglorious defeat |
| influencer | 15 | - | - |
| interphone | 15 | a telephonic intercommunication system linking different rooms in a building or ship etc | - |
| invariable | 15 | a quantity that does not vary | - |
| introspect | 14 | reflect on one's own thoughts and feelings | - |
| intermarry | 15 | marry within the same ethnic, social, or family group | - |
| insulbrick | 18 | - | - |
| intersquad | 20 | - | - |
| intertrack | 16 | - | - |
| intervalic | 15 | - | - |
| insulative | 13 | - | - |
| idiotproof | 16 | - | - |
| immiserate | 14 | - | - |
| infraclass | 15 | - | - |
| infraorder | 14 | - | - |
| inspiredly | 16 | - | - |
| icefishing | 19 | - | - |
| illawarras | 13 | - | - |
| imagineers | 13 | - | - |
| immaturest | 14 | - | - |
| infoldings | 15 | - | - |
| infusories | 13 | - | - |
| ingrainers | 11 | - | - |
| ingrounded | 13 | - | - |
| inhumanest | 15 | - | - |
| inorganics | 13 | - | - |
| insecurest | 12 | - | - |
| insincerer | 12 | - | - |
| infectants | 15 | - | - |
| infanteers | 13 | - | - |
| immigrancy | 20 | - | - |
| immodester | 15 | - | - |
| improperer | 16 | - | - |
| inaurating | 11 | - | - |
| inbursting | 13 | - | - |
| incatenate | 12 | - | - |
| incohesive | 18 | - | - |
| indextrous | 18 | - | - |
| insipidest | 13 | - | - |
| insourcing | 13 | - | - |
| instagrams | 13 | - | - |
| isopluvial | 15 | - | - |
| isopterans | 12 | - | - |
| irukandjis | 22 | - | - |
| inwrapment | 17 | - | - |
| intaglioes | 11 | - | - |
| interblend | 13 | - | - |
| intercools | 12 | - | - |
| interfibre | 15 | - | - |
| interterms | 12 | - | - |
| invalidest | 14 | - | - |
| invasively | 19 | - | - |
| invoicings | 16 | - | - |
| idioplasms | 15 | - | - |
| idioticons | 13 | - | - |
| idlenesses | 11 | - | - |
| idolatress | 11 | a woman idolater | - |
| idolatries | 11 | - | - |
| idolatrise | 11 | - | - |
| idolatrize | 20 | - | - |
| idolatrous | 11 | blindly or excessively devoted or adoring | - |
| idiophonic | 18 | - | - |
| idiophones | 16 | - | - |
| ideologize | 21 | - | - |
| ideologues | 12 | - | - |
| ideophones | 16 | - | - |
| idioblasts | 13 | - | - |
| idiographs | 17 | - | - |
| idiolectal | 13 | - | - |
| idiolectic | 15 | - | - |
| idoloclast | 13 | - | - |
| idoneities | 11 | - | - |
| iffinesses | 16 | - | - |
| illatively | 16 | - | - |
| illaudable | 13 | - | - |
| illaudably | 16 | - | - |
| illegalise | 11 | declare illegal; outlaw | - |
| illegalize | 20 | declare illegal; outlaw | - |
| illaqueate | 19 | - | - |
| iguanodons | 12 | - | - |
| ignescents | 13 | - | - |
| ignimbrite | 15 | - | - |
| ignipotent | 13 | - | - |
| ignobility | 16 | the quality of being ignoble | - |
| ignominies | 13 | - | - |
| ignorances | 13 | - | - |
| ignoration | 11 | - | - |
| illocution | 12 | - | - |
| ideologise | 12 | - | - |
| iceboating | 15 | - | - |
| iconoclasm | 16 | the orientation of an iconoclast | - |
| iconolater | 12 | - | - |
| iconolatry | 15 | the worship of sacred images | - |
| iconomachy | 22 | - | - |
| iconomatic | 16 | - | - |
| iconometer | 14 | - | - |
| iconometry | 17 | - | - |
| iconifying | 19 | - | - |
| iconically | 17 | - | - |
| ichneumons | 17 | - | - |
| ichnolites | 15 | - | - |
| ichthyoids | 22 | - | - |
| ichthyoses | 21 | - | - |
| ichthyosis | 21 | any of several congenital diseases in which the skin is dry and scaly like a fish | - |
| ichthyotic | 23 | - | - |
| ickinesses | 16 | - | - |
| iconoscope | 16 | the first practical television-camera for picture pickup; invented in 1923 by Vladimir Kosma Zworykin | - |
| icosahedra | 16 | - | - |
| ictericals | 14 | - | - |
| identifies | 14 | - | - |
| identikits | 15 | - | - |
| identities | 11 | - | - |
| ideogramic | 16 | - | - |
| ideographs | 17 | - | - |
| ideography | 20 | the use of ideograms in writing | - |
| idempotent | 15 | unchanged in value following multiplication by itself | this matrix is idempotent |
| ideational | 11 | being of the nature of a notion or concept | - |
| idealisers | 11 | - | - |
| idealising | 12 | - | - |
| idealities | 11 | - | - |
| idealizers | 20 | - | - |
| idealogies | 12 | - | - |
| idealogues | 12 | - | - |
| ideologies | 12 | - | - |
| imitancies | 14 | - | - |
| immantling | 15 | - | - |
| immeasured | 15 | - | - |
| immergence | 17 | - | - |
| immeritous | 14 | - | - |
| immanities | 14 | - | - |
| immanently | 17 | - | - |
| imitations | 12 | - | - |
| immaculacy | 21 | - | - |
| immanacled | 17 | - | - |
| immanacles | 16 | - | - |
| immanation | 14 | - | - |
| immanences | 16 | - | - |
| immanental | 14 | - | - |
| immersible | 16 | - | - |
| immersions | 14 | - | - |
| immigrants | 15 | - | - |
| immiserize | 23 | - | - |
| immissions | 14 | - | - |
| immittance | 16 | - | - |
| immixtures | 21 | - | - |
| immobilism | 18 | - | - |
| immiserise | 14 | - | - |
| immiscibly | 21 | - | - |
| immigrates | 15 | - | - |
| immigrator | 15 | - | - |
| imminences | 16 | - | - |
| immingling | 16 | - | - |
| imminution | 14 | - | - |
| immiscible | 18 | (chemistry, physics) incapable of mixing | - |
| immoderacy | 20 | - | - |
| imipramine | 16 | a tricyclic antidepressant (trade names Imavate and Tofranil) used to treat clinical depression | - |
| illuminant | 12 | something that can serve as a source of light | - |
| illusorily | 13 | - | - |
| illuviated | 14 | - | - |
| illuviates | 13 | - | - |
| imaginably | 18 | - | - |
| imaginists | 13 | - | - |
| illusively | 16 | - | - |
| illusioned | 11 | - | - |
| illuminato | 12 | - | - |
| illuminers | 12 | - | - |
| illumining | 13 | - | - |
| illuminism | 14 | - | - |
| illuminist | 12 | - | - |
| illusional | 10 | marked by or producing illusion | - |
| imbalances | 16 | - | - |
| imbecilely | 19 | - | - |
| imbricates | 16 | - | - |
| imbroccata | 18 | - | - |
| imbroglios | 15 | - | - |
| imbrowning | 18 | - | - |
| imbruement | 16 | - | - |
| imbuements | 16 | - | - |
| imidazoles | 22 | - | - |
| iminazoles | 21 | - | - |
| imbricated | 17 | used especially of leaves or bracts; overlapping or layered as scales or shingles | - |
| imbrangles | 15 | - | - |
| imbibition | 16 | the act of consuming liquids | - |
| imbittered | 15 | - | - |
| imboldened | 16 | - | - |
| imbordered | 16 | - | - |
| imbosoming | 17 | - | - |
| imbowering | 18 | - | - |
| imbrangled | 16 | - | - |
| iminoureas | 12 | - | - |
| iceboaters | 14 | - | - |
| iambically | 19 | - | - |
| iatrogenic | 13 | induced by a physician's words or therapy (used especially of a complication resulting from treatment) | - |
| ibuprofens | 17 | - | - |
| inchoately | 18 | - | - |
| incisorial | 12 | - | - |
| incitation | 12 | an act of urging on or spurring on or rousing to action or instigating | - |
| incitative | 15 | - | - |
| incitingly | 16 | - | - |
| inclasping | 15 | - | - |
| inclemency | 19 | weather unsuitable for outdoor activities | - |
| incisively | 18 | in a precise manner | - |
| incisiform | 17 | - | - |
| inchoating | 16 | - | - |
| inchoation | 15 | - | - |
| inchoative | 18 | aspect with regard to the beginning of the action of the verb | - |
| incidences | 15 | - | - |
| incipience | 16 | beginning to exist or to be apparent | he placed the incipience of democratic faith at around 1850 |
| incipiency | 19 | beginning to exist or to be apparent | it is designed to arrest monopolies in their incipiency |
| inclinable | 14 | - | - |
| inclinings | 13 | - | - |
| inclipping | 17 | - | - |
| incommodes | 17 | - | - |
| incompared | 17 | - | - |
| incomposed | 17 | - | - |
| incoronate | 12 | - | - |
| incorporal | 14 | - | - |
| incorpsing | 15 | - | - |
| incommoded | 18 | - | - |
| inclosable | 14 | - | - |
| inclosures | 12 | - | - |
| includable | 15 | - | - |
| includible | 15 | - | - |
| inclusions | 12 | - | - |
| incogitant | 13 | - | - |
| incognitas | 13 | - | - |
| incognitos | 13 | - | - |
| incrassate | 12 | - | - |
| inapparent | 14 | - | - |
| inappetent | 14 | - | - |
| inapposite | 14 | of an inappropriate or misapplied nature | - |
| inaptitude | 13 | a lack of aptitude | - |
| inarguable | 13 | against which no argument can be made | - |
| inartistic | 12 | lacking aesthetic sensibility | - |
| inaugurals | 11 | - | - |
