10-letter words with IA in the middle
Delve into the fascinating world of words where the letter IA is nestled in the middle. This section highlights the unique placement of IA in various words, illustrating how it contributes to their sound and meaning. From everyday language to more unusual terms, discover how IA in the middle shapes the essence of these words.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| especially | 17 | to a distinctly greater extent or degree than is common | an especially (or specially) cautious approach to the danger |
| appreciate | 16 | be fully aware of; realize fully | Do you appreciate the full meaning of this letter? |
| commercial | 18 | a commercially sponsored ad on radio or television | - |
| officially | 21 | with official authorization | - |
| vegetarian | 14 | eater of fruits and grains and nuts; someone who eats no meat or fish or (often) any animal products | - |
| specialist | 14 | practices one branch of medicine | - |
| industrial | 11 | employed in industry | the industrial classes |
| artificial | 15 | artificially formal | that artificial humility that her husband hated |
| humiliated | 16 | made to feel uncomfortable because of shame or wounded pride | humiliated that his wife had to go out to work |
| parliament | 14 | a card game in which you play your sevens and other cards in sequence in the same suit as the sevens; you win if you are the first to use all your cards | - |
| politician | 14 | a person active in party politics | - |
| enthusiasm | 15 | overflowing with eager enjoyment or approval | - |
| initiative | 13 | serving to set in motion | the initiative phase in the negotiations |
| associated | 13 | - | - |
| allegiance | 13 | the loyalty that citizens owe to their country (or subjects to their sovereign) | - |
| technician | 17 | someone known for high skill in some intellectual or artistic technique | - |
| provincial | 17 | a country person | - |
| unreliable | 12 | not worthy of reliance or trust | in the early 1950s computers were large and expensive and unreliable |
| initiation | 10 | wisdom as evidenced by the possession of knowledge | his dullness was due to lack of initiation |
| unfamiliar | 15 | not known or well known | a name unfamiliar to most |
| beneficial | 17 | promoting or enhancing well-being | an arms limitation agreement beneficial to all countries |
| negotiable | 13 | able to be negotiated or arranged by compromise | negotiable demands |
| negotiator | 11 | someone who negotiates (confers with others in order to reach a settlement) | - |
| speciality | 17 | an asset of special worth or utility | - |
| insatiable | 12 | impossible to satisfy | an insatiable demand for old buildings to restore |
| specialize | 23 | evolve so as to lead to a new species or develop in a way most suited to the environment | - |
| psychiatry | 23 | the branch of medicine dealing with the diagnosis and treatment of mental disorders | - |
| brilliance | 14 | unusual mental ability | - |
| diabolical | 15 | showing the cunning or ingenuity or wickedness typical of a devil | the diabolical expression on his face |
| ceremonial | 14 | a formal event performed on a special occasion | - |
| diagnostic | 14 | characteristic or indicative of a disease | a diagnostic sign of yellow fever |
| unofficial | 18 | not having official authority or sanction | a sort of unofficial mayor |
| pedestrian | 13 | lacking wit or imagination | a pedestrian movie plot |
| initiating | 11 | - | - |
| undeniable | 13 | not possible to deny | - |
| compliance | 18 | a disposition or tendency to yield to the will of others | - |
| affiliated | 17 | being joined in close association | affiliated clubs |
| primordial | 15 | having existed from the beginning; in an earliest or original stage or state | primordial matter |
| triangular | 11 | having three sides | - |
| proverbial | 17 | widely known and spoken of | her proverbial lateness |
| beautician | 14 | someone who works in a beauty parlor | - |
| incendiary | 16 | a criminal who illegally sets fire to property | - |
| bestiality | 15 | sexual activity between a person and an animal | - |
| antisocial | 12 | hostile to or disruptive of normal standards of social behavior | criminal behavior or conduct that violates the rights of other individuals is antisocial |
| subsidiary | 16 | functioning in a supporting capacity | - |
| invariably | 18 | without variation or change, in every case | - |
| plagiarism | 15 | the act of plagiarizing; taking someone's words or ideas as if they were your own | - |
| enthusiast | 13 | a person having a strong liking for something | - |
| immaterial | 14 | without material form or substance | - |
| infuriated | 14 | marked by extreme anger | infuriated onlookers charged the police who were beating the boy |
| pyromaniac | 19 | a person with a mania for setting things on fire | - |
| collegiate | 13 | of or resembling or typical of a college or college students | collegiate living |
| maniacally | 17 | in a maniacal manner or to a maniacal degree | he was maniacally obsessed with jealousy |
| inebriated | 13 | stupefied or excited by a chemical substance (especially alcohol) | helplessly inebriated |
| geriatrics | 13 | the branch of medical science that deals with diseases and problems specific to old people | - |
| equatorial | 19 | a telescope whose mounting has only two axes of motion, one parallel to the Earth's axis and the other one at right angles to it | - |
| undeniably | 16 | to an undeniable degree or in an undeniable manner | she is undeniably the most gifted student in the class |
| torrential | 10 | pouring in abundance | torrential rains |
| specialise | 14 | evolve so as to lead to a new species or develop in a way most suited to the environment | - |
| irradiated | 12 | - | - |
| managerial | 13 | of or relating to the function or responsibility or activity of management | - |
| immemorial | 16 | long past; beyond the limits of memory or tradition or recorded history | time immemorial |
| janitorial | 17 | - | - |
| theologian | 14 | someone who is learned in theology or who speculates about theology | - |
| pediatrics | 15 | the branch of medicine concerned with the treatment of infants and children | - |
| sequential | 19 | in regular succession without gaps | - |
| diagonally | 15 | in a diagonal manner | she lives diagonally across the street from us |
| podiatrist | 13 | a specialist in care for the feet | - |
| prenuptial | 14 | relating to events before a marriage | prenuptial agreement |
| retaliated | 11 | - | - |
| lesbianism | 14 | female homosexuality | - |
| unsociable | 14 | not inclined to society or companionship | an unsociable nature...shy and reserved |
| patriarchy | 20 | a form of social organization in which a male is the family head and title is traced through the male line | - |
| materially | 15 | with respect to material aspects | psychologically similar but materially different |
| colloquial | 21 | characteristic of informal spoken language or conversation | wrote her letters in a colloquial style |
| myocardial | 18 | of or relating to the myocardium | - |
| verifiable | 18 | capable of being tested (verified or falsified) by experiment or observation | - |
| centennial | 12 | of or relating to or completing a period of 100 years | centennial celebration |
| trivialize | 22 | make trivial or insignificant | Don't trivialize the seriousness of the issue! |
| repudiated | 14 | - | - |
| socialized | 22 | under group or government control | socialized ownership |
| ingratiate | 11 | gain favor with somebody by deliberate efforts | - |
| militiaman | 14 | a member of the militia; serves only during emergencies | - |
| equestrian | 19 | a man skilled in equitation | - |
| dialectics | 15 | a rationale for dialectical materialism based on change through the conflict of opposing forces | - |
| cacciatore | 16 | - | - |
| asphyxiate | 25 | be asphyxiated; die from lack of oxygen | - |
| halleluiah | 16 | - | - |
| triviality | 16 | the quality of being unimportant and petty or frivolous | - |
| praetorian | 12 | characteristic of or similar to the corruptible soldiers in the Praetorian Guard with respect to corruption or political venality | - |
| expatriate | 19 | a person who is voluntarily absent from home or country | American expatriates |
| diagnosing | 13 | identifying the nature or cause of some phenomenon | - |
| credential | 13 | a document attesting to the truth of certain stated facts | - |
| prudential | 13 | arising from or characterized by prudence especially in business matters | he abstained partly for prudential reasons |
| remarriage | 13 | the act of marrying again | - |
| palliative | 15 | remedy that alleviates pain without curing | - |
| repatriate | 12 | admit back into the country | - |
| fasciation | 15 | - | - |
| alleviated | 14 | (of pain or sorrow) made easier to bear | - |
| pianoforte | 15 | a keyboard instrument that is played by depressing keys that cause hammers to strike tuned strings and produce sounds | - |
| peculiarly | 17 | in a manner differing from the usual or expected | he's behaving rather peculiarly |
| familiarly | 18 | in an intimately familiar manner | Sid, as he was familiarly known by his friends, was one of the most respected and devoted members of the socialist minority group |
| senatorial | 10 | of or relating to senators | senatorial election |
| seminarian | 12 | a student at a seminary (especially a Roman Catholic seminary) | - |
| serialized | 20 | - | - |
| tangential | 11 | of superficial relevance if any | a tangential remark |
| millennial | 12 | relating to a millennium or span of a thousand years | - |
| initialize | 19 | assign an initial value to a computer program | - |
| grammarian | 15 | a linguist who specializes in the study of grammar and syntax | - |
| subclavian | 17 | situated beneath the clavicle | - |
| paediatric | 15 | of or relating to the medical care of children | - |
| matriarchy | 20 | a form of social organization in which a female is the family head and title is traced through the female line | - |
| epithelial | 15 | of or belonging to the epithelium | epithelial layer |
| biannually | 15 | twice a year | we hold our big sale biannually |
| glaciation | 13 | the condition of being covered with glaciers or masses of ice; the result of glacial action | Agassiz recognized marks of glaciation all over northern Europe |
| speciation | 14 | the evolution of a biological species | - |
| socialised | 13 | under group or government control | - |
| officiated | 19 | - | - |
| depreciate | 15 | lose in value | The dollar depreciated again |
| conciliate | 14 | come to terms | - |
| amiability | 17 | a cheerful and agreeable mood | - |
| pianissimo | 14 | (music) low loudness | - |
| polynomial | 17 | a mathematical function that is the sum of a number of terms | - |
| dissociate | 13 | regard as unconnected | you must dissociate these two events! |
| exfoliated | 21 | - | - |
| renunciant | 12 | used especially of behavior | - |
| cordiality | 16 | a cordial disposition | - |
| herniation | 13 | rupture in smooth muscle tissue through which a bodily structure protrudes | - |
| initialled | 11 | - | - |
| invariable | 15 | a quantity that does not vary | - |
| trivialise | 13 | make trivial or insignificant | - |
| plagiarize | 22 | take without referencing from someone else's writing or speech; of intellectual property | - |
| partiality | 15 | an inclination to favor one group or view or opinion over alternatives | - |
| suppliance | 16 | - | - |
| sacroiliac | 14 | - | - |
| officiator | 18 | - | - |
| diaphanous | 16 | so thin as to transmit light | a hat with a diaphanous veil |
| mediascape | 17 | - | - |
| lisianthus | 13 | - | - |
| greenbriar | 13 | - | - |
| arrabbiata | 14 | - | - |
| diammonium | 17 | - | - |
| diasporist | 13 | - | - |
| ungenially | 14 | - | - |
| postracial | 14 | - | - |
| spatialise | 12 | - | - |
| spaciality | 17 | - | - |
| spatialize | 21 | - | - |
| sialorrhea | 13 | - | - |
| copraemias | 16 | - | - |
| coecilians | 14 | - | - |
| codifiable | 18 | - | - |
| chiarezzas | 33 | - | - |
| coccidians | 17 | - | - |
| apophenias | 17 | - | - |
| antiarmour | 12 | - | - |
| autodialed | 12 | - | - |
| acathisias | 15 | - | - |
| allodynias | 14 | - | - |
| bariatrics | 14 | - | - |
| geospatial | 13 | - | - |
| hemoconias | 17 | - | - |
| hemianopic | 19 | - | - |
| hortensias | 13 | - | - |
| daltonians | 11 | - | - |
| denialists | 11 | - | - |
| extropians | 19 | - | - |
| facialists | 15 | - | - |
| financials | 15 | - | - |
| ecotarians | 12 | - | - |
| epinikians | 16 | - | - |
| epicedians | 15 | - | - |
| euphrasias | 15 | - | - |
| monopodias | 15 | - | - |
| isopluvial | 15 | - | - |
| malpighias | 18 | - | - |
| sardonians | 11 | - | - |
| partialled | 13 | - | - |
| precariats | 14 | - | - |
| pleuronias | 12 | - | - |
| tendencial | 13 | - | - |
| unreliably | 15 | in an unfaithful undependable unreliable manner | - |
| unbiasings | 13 | - | - |
| sicilianas | 12 | - | - |
| skordalias | 15 | - | - |
| wikitorial | 17 | - | - |
| villiacoes | 15 | - | - |
| capitolian | 14 | - | - |
| capocchias | 21 | - | - |
| cailliachs | 17 | - | - |
| cafeterias | 15 | - | - |
| caecilians | 14 | - | - |
| caesarians | 12 | - | - |
| calandrias | 13 | - | - |
| cacciatora | 16 | - | - |
| cachaemias | 19 | - | - |
| cacotopian | 16 | - | - |
| cacotopias | 16 | - | - |
| calumniate | 14 | charge falsely or with malicious intent; attack the good name and reputation of someone | - |
| calliature | 12 | - | - |
| caliatours | 12 | - | - |
| categorial | 13 | of or relating to the concept of categories | - |
| catenarian | 12 | - | - |
| catamenial | 14 | of or relating to menstruation or the menses | - |
| catatonias | 12 | - | - |
| carapacial | 16 | - | - |
| carnassial | 12 | (of a tooth) adapted for shearing flesh | the carnassial teeth of carnivores |
| carnelians | 12 | - | - |
| cardialgic | 16 | - | - |
| chanukiahs | 22 | - | - |
| celestials | 12 | - | - |
| centaurian | 12 | - | - |
| causalgias | 13 | - | - |
| cercarians | 14 | - | - |
| choriambic | 21 | - | - |
| choriambus | 19 | - | - |
| christians | 15 | - | - |
| chlamydiae | 21 | - | - |
| chlamydial | 21 | of or pertaining to the sexually transmitted infection or to the parasite | - |
| chlamydias | 21 | - | - |
| cholaemias | 17 | - | - |
| choliambic | 21 | - | - |
| cinerarias | 12 | - | - |
| ciliations | 12 | - | - |
| chiackings | 22 | - | - |
| chiasmatic | 19 | of or relating to a chiasm | - |
| chelonians | 15 | - | - |
| chemiatric | 19 | - | - |
| chipochias | 22 | - | - |
| chiliagons | 16 | - | - |
| chiliarchs | 20 | - | - |
| chiliarchy | 23 | - | - |
| chiliastic | 17 | relating to or believing in the millennium of peace and happiness | - |
| cnidarians | 13 | - | - |
| clintonias | 12 | - | - |
| clinicians | 14 | - | - |
| circensian | 14 | - | - |
| circensial | 14 | - | - |
| circassian | 14 | a member of the Sunni Muslim people living in northwestern Caucasia | - |
| clergiable | 15 | - | - |
| cleruchial | 17 | - | - |
| cleruchias | 17 | - | - |
| claytonias | 15 | - | - |
| colubriads | 15 | - | - |
| colonially | 15 | - | - |
| collegians | 13 | - | - |
| collinsias | 12 | - | - |
| congiaries | 13 | - | - |
| concordial | 15 | - | - |
| compliable | 18 | - | - |
| compliably | 21 | - | - |
| compliancy | 21 | a disposition or tendency to yield to the will of others | - |
| conciliary | 17 | - | - |
| cornelians | 12 | - | - |
| cordialise | 13 | - | - |
| cordialize | 22 | - | - |
| corianders | 13 | - | - |
| coriaceous | 14 | resembling or made to resemble leather; tough but pliable | - |
| consociate | 14 | bring or come into association or action | The churches consociated to fight their dissolution |
| consortial | 12 | - | - |
| contrarian | 12 | an investor who deliberately decides to go against the prevailing wisdom of other investors | - |
| covariates | 15 | - | - |
| covariants | 15 | - | - |
| covariance | 17 | (statistics) the mean value of the product of the deviations of two variates from their respective means | - |
| costalgias | 13 | - | - |
| coulibiaca | 16 | - | - |
| coulibiacs | 16 | - | - |
| custodians | 13 | - | - |
| curatorial | 12 | of or relating to a curator or the duties of a curator | curatorial duties |
| curialisms | 14 | - | - |
| curialists | 12 | - | - |
| cycloidian | 18 | - | - |
| cybrarians | 17 | - | - |
| crithidial | 16 | - | - |
| crocosmias | 16 | - | - |
| culinarian | 12 | - | - |
| cruciately | 17 | - | - |
| decennials | 13 | - | - |
| decagynian | 17 | - | - |
| decandrian | 14 | - | - |
| danthonias | 14 | - | - |
| cytopenias | 17 | - | - |
| dalliances | 13 | - | - |
| dalmatians | 13 | - | - |
| demoniacal | 15 | of, pertaining to, or like a demon or possession by a demon | - |
| denunciate | 13 | - | - |
| defoliants | 14 | - | - |
| defoliated | 15 | deprived of leaves | - |
| defoliates | 14 | - | - |
| defoliator | 14 | an insect that strips the leaves from plants | - |
| deforciant | 16 | - | - |
| bouvardias | 16 | - | - |
| branchiate | 17 | provided with gills | - |
| brachiates | 17 | - | - |
| brachiator | 17 | - | - |
| brachiated | 18 | - | - |
| bloviation | 15 | - | - |
| bloviating | 16 | - | - |
| bonamiases | 14 | - | - |
| bonamiasis | 14 | - | - |
| boobiallas | 14 | - | - |
| bolivianos | 15 | - | - |
| breviaries | 15 | - | - |
| briarroots | 12 | - | - |
| briarwoods | 16 | - | - |
| brilliancy | 17 | a quality that outshines the usual | - |
| brilliante | 12 | - | - |
| brecciates | 16 | - | - |
| brecciated | 17 | - | - |
| browallias | 15 | - | - |
| bromeliads | 15 | - | - |
| brilliants | 12 | - | - |
| brittanias | 12 | - | - |
| britannias | 12 | - | - |
| axialities | 17 | - | - |
| azotaemias | 21 | - | - |
| babesiasis | 14 | - | - |
| babesiases | 14 | - | - |
| avianising | 14 | - | - |
| avianizing | 23 | - | - |
| aviatrices | 15 | - | - |
| aviatrixes | 20 | - | - |
| atrabiliar | 12 | - | - |
| asynergias | 14 | - | - |
| auditorial | 11 | - | - |
| aubrietias | 12 | - | - |
| audiencias | 13 | - | - |
| barbarians | 14 | - | - |
| bacterials | 14 | - | - |
| bailliages | 13 | - | - |
| apollonian | 12 | - | - |
| apophysial | 20 | - | - |
| apothecial | 17 | of or relating to the apothecium of some lichens and fungi | - |
| apterygial | 16 | - | - |
| appliances | 16 | - | - |
| antiaditis | 11 | - | - |
| antiasthma | 15 | - | - |
| antiauxins | 17 | - | - |
| anoxaemias | 19 | - | - |
| antiscians | 12 | - | - |
| antimonial | 12 | containing antimony | antimonial lead |
| antinomian | 12 | a follower of the doctrine of antinomianism | - |
| asclepiads | 15 | - | - |
| asphyxiant | 25 | - | - |
| arthrodiae | 14 | - | - |
| arthrodial | 14 | - | - |
| ascariasis | 12 | infestation of the human intestine with Ascaris roundworms | - |
| ascariases | 12 | - | - |
| asteriated | 11 | (of some crystals especially gemstones) exhibiting asterism | - |
| asteridian | 11 | - | - |
| astrantias | 10 | - | - |
| associable | 14 | capable of being associated | words associable with politics |
| associates | 12 | - | - |
| associator | 12 | - | - |
| arterially | 13 | - | - |
| aquilegias | 20 | - | - |
| araucarias | 12 | - | - |
| araucarian | 12 | - | - |
| armorially | 15 | - | - |
| arpeggiate | 14 | - | - |
| arseniates | 10 | - | - |
| artemisias | 12 | - | - |
| arhythmias | 21 | - | - |
| bestialize | 21 | make brutal and depraved; give animal-like qualities to | - |
| bestiaries | 12 | - | - |
| bestialism | 14 | - | - |
| bestialise | 12 | make brutal and depraved; give animal-like qualities to | - |
| beccaccias | 20 | - | - |
| batrachian | 17 | any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species | - |
| bediapered | 16 | - | - |
| bivariants | 15 | - | - |
| bivariates | 15 | - | - |
| biracially | 17 | - | - |
| biannulate | 12 | - | - |
| biasnesses | 12 | - | - |
| biathletes | 15 | - | - |
| bifacially | 20 | - | - |
| biennially | 15 | every two years | this festival takes places biennially |
| biophilias | 17 | - | - |
| bilharzial | 24 | - | - |
| bilharzias | 24 | - | - |
| binomially | 17 | - | - |
| bimestrial | 14 | occurring every two months | - |
| alliaceous | 12 | of or pertaining to the botanical genus Allium | onions, leeks, garlic, chives are alliaceous plants |
| alleviator | 13 | remedy that alleviates pain without curing | - |
| alleviates | 13 | - | - |
| alleluiahs | 13 | - | - |
| alleviants | 13 | - | - |
| allegiants | 11 | - | - |
| altricials | 12 | - | - |
| amazonians | 21 | - | - |
| agalactias | 13 | - | - |
| alfilarias | 13 | - | - |
| alfilerias | 13 | - | - |
| agronomial | 13 | - | - |
| akathisias | 17 | - | - |
| androecial | 13 | - | - |
| anarthrias | 13 | - | - |
| annunciate | 12 | foreshadow or presage | - |
| annuntiate | 10 | - | - |
| anodontias | 11 | - | - |
| anhedonias | 14 | - | - |
| amianthine | 15 | - | - |
| amoebiases | 14 | - | - |
| amoebiasis | 14 | infection by a disease-causing ameba | - |
| amianthoid | 16 | - | - |
| amiantuses | 12 | - | - |
| ammoniacal | 16 | pertaining to or containing or similar to ammonia | - |
| ammoniacum | 18 | - | - |
| ammoniated | 15 | combined or treated with ammonia | ammoniated mercury |
| ammoniates | 14 | - | - |
| amphiaster | 17 | - | - |
| amphibians | 19 | - | - |
| amphiscian | 19 | - | - |
| amblyopias | 19 | - | - |
| amerciable | 16 | of a crime or misdemeanor; punishable by a fine set by a judge | - |
| ametropias | 14 | - | - |
| analgesias | 11 | - | - |
| anaplasias | 12 | - | - |
| amsinckias | 18 | - | - |
| ampliation | 14 | - | - |
| ampliative | 17 | - | - |
| amyotonias | 15 | - | - |
| acaridians | 13 | - | - |
| acalculias | 14 | - | - |
| abbreviate | 17 | reduce in scope while retaining essential elements | - |
| abacterial | 14 | - | - |
| abranchial | 17 | having no gills | - |
| adverbials | 16 | - | - |
| adriamycin | 18 | - | - |
| aesthesias | 13 | - | - |
| affiancing | 19 | - | - |
| affiliable | 18 | - | - |
| affiliates | 16 | - | - |
| aerialists | 10 | - | - |
| acroterial | 12 | - | - |
| achalasias | 15 | - | - |
| adiabatics | 15 | - | - |
| adiactinic | 15 | - | - |
| adiaphoron | 16 | - | - |
| halcyonian | 18 | - | - |
| grindelias | 12 | - | - |
| gymnasiast | 16 | - | - |
| gyniatrics | 16 | - | - |
| gyniatries | 14 | - | - |
| heliacally | 18 | - | - |
| helianthus | 16 | any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays | - |
| hegemonial | 16 | - | - |
| heliconias | 15 | - | - |
| hemiopsias | 17 | - | - |
| hemiacetal | 17 | an organic compound usually formed as an intermediate product in the preparation of acetals from aldehydes or ketones | - |
| hemialgias | 16 | - | - |
| hematurias | 15 | - | - |
| haustorial | 13 | - | - |
| historians | 13 | - | - |
| hippiatric | 19 | - | - |
| herniating | 14 | - | - |
| heresiarch | 18 | - | - |
| herbarians | 15 | - | - |
| hexandrian | 21 | - | - |
| hexagynian | 24 | - | - |
| humiliates | 15 | - | - |
| humiliator | 15 | - | - |
| houstonias | 13 | - | - |
| hydraemias | 19 | - | - |
| homousians | 15 | - | - |
| homotaxial | 22 | - | - |
| homoousian | 15 | - | - |
| homosocial | 17 | - | - |
| horiatikis | 17 | - | - |
| illuviated | 14 | - | - |
| illuviates | 13 | - | - |
| hyperemias | 20 | - | - |
| hyperopias | 20 | - | - |
| hypanthial | 21 | - | - |
| hypotonias | 18 | - | - |
| hypoxemias | 27 | - | - |
| hypodorian | 19 | - | - |
| hypolydian | 22 | - | - |
| hypomanias | 20 | - | - |
| incisorial | 12 | - | - |
| imperially | 17 | in an imperial manner | imperially decreed |
| initiators | 10 | - | - |
| inmarriage | 13 | marriage within one's own tribe or group as required by custom or law | - |
| initiatory | 13 | serving to set in motion | an initiatory step toward a treaty |
| initiatrix | 17 | - | - |
| injudicial | 20 | - | - |
| initialers | 10 | - | - |
| initialing | 11 | - | - |
| initialise | 10 | assign an initial value to a computer program | - |
| initialism | 12 | a word formed from the initial letters of the several words in the name and pronounced as one word | `NATO' is an initialism for North Atlantic Treaty Organization |
| initialler | 10 | - | - |
| insomniacs | 14 | - | - |
| insouciant | 12 | marked by blithe unconcern | an utterly insouciant financial policy |
| insociable | 14 | - | - |
| insociably | 17 | - | - |
| insatiably | 15 | to an insatiable degree | she was insatiably hungry |
| inexpiable | 21 | incapable of being atoned for | - |
| inexpiably | 24 | - | - |
| inertially | 13 | - | - |
