14-letter words ending with Y
Dive into the specific realm of 14-letter words that conclude with the letter Y. This focused section reveals the fascinating ways in which words of this particular length, ending with Y, contribute to the richness of the English language. Whether it's for expanding your vocabulary, solving puzzles, or simply for the love of words, discover how these terms uniquely blend length and ending sound.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| responsibility | 21 | a form of trustworthiness; the trait of being answerable to someone for something or being responsible for one's conduct | he holds a position of great responsibility |
| simultaneously | 19 | at the same instant | they spoke simultaneously |
| professionally | 22 | in a professional manner | professionally trained staff |
| scientifically | 24 | with respect to science; in a scientific way | this is scientifically interesting |
| hypothetically | 30 | by hypothesis | - |
| cinematography | 27 | the act of making a film | - |
| systematically | 24 | in a systematic or consistent manner | they systematically excluded women |
| intellectually | 19 | in an intellectual manner | intellectually gifted children |
| coincidentally | 22 | happening at the same time | - |
| metaphorically | 26 | in a metaphorical manner | she expressed herself metaphorically |
| affectionately | 25 | with affection | he treats her affectionately |
| wholeheartedly | 27 | without reserve; without reservation | he adopted wholeheartedly some of the policies that he had previously criticized |
| subconsciously | 23 | from the subconscious mind | the image came to him subconsciously |
| electronically | 21 | by electronic means | the door opens electronically |
| understandably | 21 | in an intelligible manner | - |
| accountability | 23 | responsibility to someone or for some activity | - |
| overwhelmingly | 29 | incapable of being resisted | the candy looked overwhelmingly desirable to the dieting man |
| democratically | 24 | in a democratic manner; based on democratic principles | it was decided democratically |
| uncontrollably | 21 | in an uncontrolled manner | she laughed uncontrollably |
| mathematically | 26 | with respect to mathematics | mathematically impossible |
| sentimentality | 19 | falsely emotional in a maudlin way | - |
| respectability | 23 | honorableness by virtue of being respectable and having a good reputation | - |
| geographically | 26 | with respect to geography | they are geographically closer to the center of town |
| alphabetically | 26 | in alphabetical order | the list was arranged alphabetically |
| nanotechnology | 23 | the branch of engineering that deals with things smaller than 100 nanometers (especially with the manipulation of individual molecules) | - |
| sustainability | 19 | the property of being sustainable | - |
| unquestionably | 28 | without question and beyond doubt | - |
| interplanetary | 19 | between or among planets | interplanetary travel |
| cardiomyopathy | 30 | a disorder (usually of unknown origin) of the heart muscle (myocardium) | - |
| undersecretary | 20 | a secretary immediately subordinate to the head of a department of government | - |
| unsatisfactory | 22 | not giving satisfaction | shops should take back unsatisfactory goods |
| confidentially | 23 | in a confidential manner | spoke to him intimately and confidentially |
| pathologically | 25 | with respect to pathology | pathologically interesting results |
| unsuccessfully | 24 | without success | she tried unsuccessfully to persuade him to buy a new car |
| electrotherapy | 24 | the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis) | - |
| congratulatory | 20 | expressive of sympathetic pleasure or joy on account of someone's success or good fortune | a congratulatory telegram |
| proportionally | 21 | to a proportionate degree | - |
| parapsychology | 30 | phenomena that appear to contradict physical laws and suggest the possibility of causation by mental processes | - |
| intermittently | 19 | in an intermittent manner | intermittently we questioned the barometer |
| excruciatingly | 29 | in a very painful manner | - |
| conservatively | 25 | in a conservative manner | we estimated the number of demonstrators conservatively at 200,000. |
| predictability | 24 | the quality of being predictable | - |
| discriminatory | 22 | containing or implying a slight or showing prejudice | discriminatory attitudes and practices |
| conventionally | 22 | in a conventional manner | he usually behaves rather conventionally |
| supernaturally | 19 | in a supernatural manner | - |
| susceptibility | 23 | the state of being susceptible; easily affected | - |
| satisfactorily | 22 | in a satisfactory manner | - |
| embarrassingly | 22 | causing embarrassment | the great man was embarrassingly humble and self-effacing |
| linguistically | 20 | with respect to language | linguistically impaired children |
| experimentally | 28 | in an experimental fashion | this can be experimentally determined |
| metaphysically | 29 | in a metaphysical manner | he thinks metaphysically |
| sociologically | 22 | with regard to sociology | sociologically speaking, this is an interesting phenomenon |
| telepathically | 24 | - | - |
| inconveniently | 22 | in an inconvenient manner | he arrived at an inconveniently late hour |
| diplomatically | 24 | with diplomacy; in a diplomatic manner | he answered very diplomatically |
| dimensionality | 20 | the spatial property of having dimensions | all matter has dimensionality |
| optimistically | 23 | with optimism; in an optimistic manner | `We have a good chance of winning,' he exclaimed optimistically |
| insufficiently | 25 | to an insufficient degree | he was insufficiently prepared |
| convertibility | 24 | the quality of being exchangeable (especially the ability to convert a currency into gold or other currencies without restriction) | - |
| constructively | 24 | in a constructive manner | it is my task to look critically and constructively at the flaws and the failures |
| unintelligibly | 20 | in an unintelligible manner | the foreigners spoke unintelligibly |
| superficiality | 24 | lack of depth of knowledge or thought or feeling | - |
| appreciatively | 26 | with appreciation; in a grateful manner | he accepted my offer appreciatively |
| astronomically | 21 | enormously | the bill was astronomically high |
| encephalopathy | 29 | any disorder or disease of the brain | - |
| unconvincingly | 25 | in an unconvincing manner | he argued unconvincingly |
| neuropathology | 23 | - | - |
| telephonically | 24 | - | - |
| astrologically | 20 | - | - |
| chromatography | 30 | a process used for separating mixtures by virtue of differences in absorbency | - |
| unsuspectingly | 22 | without suspicions | he was sitting unsuspectingly beyond that wall only a few yards from the burglar |
| preposterously | 21 | so as to arouse or deserve laughter | - |
| preferentially | 22 | in a preferential manner | he was treated preferentially |
| quantitatively | 29 | in a quantitative manner | this can be expressed quantitatively |
| suggestibility | 21 | susceptibility or responsiveness to suggestion | - |
| irrevocability | 24 | - | - |
| inscrutability | 21 | the quality of being impossible to investigate | the inscrutability of the future |
| anesthesiology | 21 | the branch of medical science that studies and applies anesthetics | - |
| bioelectricity | 23 | electric phenomena in animals or plants | - |
| directionality | 20 | the property of a microphone or antenna of being more sensitive in one direction than in another | - |
| disapprovingly | 26 | showing disapproval | he shook his head disapprovingly |
| ethnologically | 23 | - | - |
| etymologically | 25 | - | - |
| historiography | 26 | a body of historical literature | - |
| unconscionably | 23 | - | - |
| unavailability | 22 | the quality of not being available when needed | - |
| unhesitatingly | 21 | without hesitation | she said yes unhesitatingly |
| manipulability | 23 | the quality of being controllable by skilled movements of the hands | - |
| manipulatively | 24 | in an artfully manipulative manner | - |
| manometrically | 23 | - | - |
| magniloquently | 29 | in a rhetorically grandiloquent manner | the orator spoke magniloquently |
| malcontentedly | 22 | - | - |
| meretriciously | 21 | in a meretricious manner | the boat is meretriciously decorated |
| medicamentally | 24 | - | - |
| mechanotherapy | 29 | - | - |
| megaphonically | 27 | - | - |
| megascopically | 26 | - | - |
| megatechnology | 26 | - | - |
| leukodystrophy | 30 | - | - |
| lightheartedly | 25 | - | - |
| limnologically | 22 | with regard to or concerning limnology | - |
| legalistically | 20 | - | - |
| macrosociology | 24 | - | - |
| machineability | 26 | - | - |
| localisability | 21 | - | - |
| localizability | 30 | - | - |
| lithologically | 23 | - | - |
| loxodromically | 29 | - | - |
| longitudinally | 19 | in the direction of the length | - |
| monocarpellary | 23 | - | - |
| monolithically | 24 | - | - |
| monomaniacally | 23 | - | - |
| monophonically | 26 | - | - |
| multifrequency | 33 | - | - |
| multilaterally | 19 | in a multilateral manner;so as to affect many parties or governments | - |
| multilingually | 20 | - | - |
| multifariously | 22 | in diverse ways | - |
| morganatically | 22 | - | - |
| moralistically | 21 | - | - |
| mucilaginously | 22 | - | - |
| muddleheadedly | 26 | - | - |
| motivationally | 22 | - | - |
| microcircuitry | 25 | - | - |
| microcelebrity | 25 | - | - |
| microchemistry | 28 | - | - |
| micrologically | 24 | - | - |
| metapsychology | 30 | - | - |
| metastatically | 21 | - | - |
| metathetically | 24 | - | - |
| metempirically | 25 | - | - |
| metrologically | 22 | - | - |
| metronomically | 23 | - | - |
| nonexplanatory | 26 | - | - |
| nonfictionally | 22 | - | - |
| nonobjectivity | 31 | - | - |
| nondocumentary | 22 | - | - |
| novelistically | 22 | - | - |
| numismatically | 23 | - | - |
| nonproprietary | 21 | not protected by trademark or patent or copyright | nonproprietary products are in the public domain and anyone can produce or distribute them |
| nonpolitically | 21 | - | - |
| nonsupervisory | 22 | - | - |
| nonsensicality | 19 | a message that seems to convey no meaning | - |
| navigationally | 21 | - | - |
| myocardiopathy | 30 | a disorder (usually of unknown origin) of the heart muscle (myocardium) | - |
| myographically | 30 | - | - |
| mystagogically | 26 | - | - |
| mythologically | 28 | - | - |
| noncommittally | 23 | - | - |
| neurogenically | 20 | - | - |
| neurochemistry | 24 | - | - |
| nephrotoxicity | 31 | - | - |
| neurohypnology | 26 | - | - |
| neurologically | 20 | - | - |
| neuroradiology | 19 | - | - |
| neurosecretory | 19 | - | - |
| overgenerosity | 21 | - | - |
| overgenerously | 21 | - | - |
| overpoweringly | 26 | incapable of being resisted | - |
| ophthalmometry | 29 | - | - |
| ophthalmoscopy | 31 | examination of the interior of an eye using an ophthalmoscope | - |
| opinionatively | 22 | - | - |
| occupationally | 23 | - | - |
| octingentenary | 20 | - | - |
| obstreperously | 21 | in manner that attracts attention | obstreperously, he demanded to get service |
| oesophagoscopy | 27 | - | - |
| oligarchically | 25 | - | - |
| osmoregulatory | 20 | - | - |
| ostentatiously | 17 | with ostentation; in an ostentatious manner | Mr Khrushchev ostentatiously wooed and embraced Castro at the U.N. general assembly |
| osteologically | 20 | - | - |
| osmometrically | 23 | - | - |
| orthopedically | 25 | - | - |
| orthopterology | 23 | - | - |
| otolaryngology | 22 | the medical specialty that deals with diseases of the ear, nose and throat | - |
| organisability | 20 | - | - |
| organismically | 22 | - | - |
| organizability | 29 | - | - |
| orthogenically | 23 | - | - |
| orogenetically | 20 | - | - |
| orographically | 25 | - | - |
| performability | 26 | - | - |
| performatively | 27 | - | - |
| perfectibility | 26 | the capability of becoming perfect | he believes in the ultimate perfectibility of man |
| perimetrically | 23 | - | - |
| peritoneoscopy | 23 | - | - |
| peritrichously | 24 | - | - |
| perlocutionary | 21 | - | - |
| permissibility | 23 | admissibility as a consequence of being permitted | - |
| periodontology | 21 | - | - |
| periscopically | 25 | - | - |
| perceivability | 26 | - | - |
| perceptibility | 25 | the property of being perceptible by the mind or the senses | - |
| percutaneously | 21 | - | - |
| phenotypically | 29 | - | - |
| phenologically | 25 | - | - |
| philatelically | 24 | in a philatelic manner | the Post Office honors great Americans philatelically |
| philologically | 25 | - | - |
| persuasibility | 21 | - | - |
| pertinaciously | 21 | in a dogged and pertinacious manner | he struggled pertinaciously for the new resolution |
| pestilentially | 19 | - | - |
| persuadability | 22 | - | - |
| petrochemistry | 26 | - | - |
| phantasmically | 26 | - | - |
| petrologically | 22 | - | - |
| pancreatectomy | 25 | surgical removal of part or all of the pancreas | - |
| paleopathology | 25 | the study of disease of former times (as inferred from fossil evidence) | - |
| pangenetically | 22 | - | - |
| pantomimically | 25 | - | - |
| palaeethnology | 23 | - | - |
| paganistically | 22 | - | - |
| oxymoronically | 31 | - | - |
| pacifistically | 26 | in a pacifistic manner | the pacifistically inclined liberals |
| paleogeography | 26 | the study of the geography of ancient times or ancient epochs | - |
| palaeopedology | 23 | - | - |
| paroemiography | 27 | - | - |
| parsimoniously | 21 | - | - |
| partridgeberry | 23 | creeping woody plant of eastern North America with shiny evergreen leaves and scarlet berries | - |
| paradoxicality | 29 | - | - |
| parabiotically | 23 | - | - |
| paradisaically | 22 | - | - |
| paradisiacally | 22 | - | - |
| paratactically | 23 | - | - |
| parametrically | 23 | - | - |
| polarizability | 30 | - | - |
| polycarpellary | 26 | - | - |
| polydispersity | 25 | - | - |
| polyphonically | 29 | in a polyphonic manner | polyphonically composed |
| polymorphously | 29 | - | - |
| plumbosolvency | 28 | - | - |
| plumbisolvency | 28 | - | - |
| practicability | 25 | the quality of being usable | - |
| pragmaticality | 24 | - | - |
| praiseworthily | 25 | in an admirable manner | - |
| postpositively | 24 | - | - |
| precessionally | 21 | - | - |
| precedentially | 22 | - | - |
| postmastectomy | 25 | - | - |
| postcopulatory | 23 | - | - |
| pleonastically | 21 | - | - |
| photolytically | 27 | - | - |
| photogenically | 25 | - | - |
| photogrammetry | 27 | - | - |
| photothermally | 27 | - | - |
| phototypically | 29 | - | - |
| phlegmatically | 27 | in a phlegmatic manner | he accepted the decision phlegmatically |
| phonologically | 25 | - | - |
| phonochemistry | 29 | - | - |
| phonematically | 26 | - | - |
| photochemistry | 29 | branch of chemistry that deals with the chemical action of light | - |
| pleasurability | 21 | - | - |
| phytochemistry | 32 | the branch of organic chemistry dealing with the chemistry of plants | - |
| phytogeography | 32 | - | - |
| phytologically | 28 | - | - |
| piezochemistry | 35 | - | - |
| phytopathology | 31 | - | - |
| phytosociology | 28 | - | - |
| proportionably | 23 | - | - |
| proscriptively | 26 | - | - |
| prosthetically | 24 | - | - |
| protoplanetary | 21 | - | - |
| progressionary | 20 | - | - |
| prohibitionary | 24 | - | - |
| propitiatorily | 21 | - | - |
| pseudonymously | 25 | - | - |
| pseudosymmetry | 27 | - | - |
| prototypically | 26 | - | - |
| providentially | 23 | in a prudent manner | - |
| pseudepigraphy | 28 | - | - |
| premeditatedly | 23 | - | - |
| premenstrually | 21 | - | - |
| preoperatively | 24 | - | - |
| preponderantly | 22 | much greater in number or influence | - |
| preponderately | 22 | - | - |
| predesignatory | 21 | - | - |
| preconcertedly | 24 | - | - |
| preconsciously | 23 | - | - |
| processability | 23 | - | - |
| processibility | 23 | - | - |
| processionally | 21 | - | - |
| professorially | 22 | in a professorial manner | she behaved very professorially |
| procryptically | 28 | - | - |
| productibility | 24 | - | - |
| presidentially | 20 | in a presidential manner | - |
| preservability | 24 | - | - |
| presbyterially | 24 | - | - |
| prescriptively | 26 | - | - |
| presentability | 21 | - | - |
| presumptuously | 23 | in a presumptuous manner | he presumptuously overstepped the doctor's orders |
| preventability | 24 | - | - |
| preventibility | 24 | - | - |
| prevocalically | 26 | - | - |
| reconciliatory | 21 | - | - |
| recoverability | 24 | - | - |
| rectilinearity | 19 | - | - |
| rectifiability | 24 | - | - |
| rectangularity | 20 | the property of being shaped like a rectangle | - |
| recapitulatory | 21 | - | - |
| recommendatory | 24 | - | - |
| recollectively | 24 | - | - |
| regeneratively | 21 | - | - |
| referentiality | 20 | - | - |
| refrangibility | 23 | - | - |
| reflectography | 28 | - | - |
| pyrophotometry | 29 | - | - |
| quadrangularly | 28 | - | - |
| querimoniously | 28 | - | - |
| questionlessly | 26 | - | - |
| quaquaversally | 38 | - | - |
| pugilistically | 22 | - | - |
| psychosexually | 34 | - | - |
| psychosocially | 29 | - | - |
| pyrochemically | 31 | - | - |
| pyrometallurgy | 25 | - | - |
| pyrometrically | 26 | - | - |
| purchasability | 26 | - | - |
| putrescibility | 23 | - | - |
| radiotelephony | 23 | telephony that uses transmission by radio rather than by wire | - |
| rambunctiously | 23 | - | - |
| radiotelemetry | 20 | - | - |
| quinquennially | 35 | - | - |
| quinquevalency | 40 | - | - |
| radiologically | 21 | - | - |
| radiochemistry | 25 | the chemistry of radioactive substances | - |
| roentgenoscopy | 22 | - | - |
| roundaboutedly | 21 | - | - |
| rontgenography | 24 | - | - |
| rheumatoidally | 23 | - | - |
| sacramentality | 21 | - | - |
| sacrilegiously | 20 | in a sacrilegious manner | - |
| salvageability | 23 | - | - |
| replaceability | 23 | exchangeability by virtue of being replaceable | - |
| reprehensively | 25 | in a shameful manner | - |
| reproductively | 25 | - | - |
| reproductivity | 25 | - | - |
| reprobationary | 21 | - | - |
| repressibility | 21 | - | - |
| remunerability | 21 | - | - |
| remuneratively | 22 | - | - |
| retrievability | 22 | - | - |
| retractability | 21 | - | - |
| retractibility | 21 | - | - |
| requisitionary | 26 | - | - |
| sinistrorsally | 17 | - | - |
| slaughterously | 21 | - | - |
| shortsightedly | 25 | - | - |
| simplemindedly | 25 | - | - |
| simplistically | 23 | - | - |
| spellbindingly | 23 | - | - |
| spectacularity | 23 | - | - |
| soporiferously | 22 | - | - |
| solecistically | 21 | - | - |
| scrutinizingly | 29 | - | - |
| scrutinisingly | 20 | - | - |
| schismatically | 26 | in a manner that is schismatic | - |
| schoolmasterly | 24 | - | - |
| scholastically | 24 | with respect to scholastic activities | scholastically apt |
| seriocomically | 23 | - | - |
| sesquipedality | 29 | using long words | - |
| serviceability | 24 | the quality of being able to provide good service | - |
| seronegativity | 21 | - | - |
| seropositivity | 22 | - | - |
| serpentiningly | 20 | - | - |
| semicircularly | 23 | - | - |
| semaphorically | 26 | - | - |
| semiofficially | 27 | - | - |
| semiologically | 22 | - | - |
| subgenerically | 22 | - | - |
| subinfeudatory | 23 | - | - |
| subcontrariety | 21 | - | - |
| subcutaneously | 21 | below the skin | inject subcutaneously |
| submergibility | 24 | - | - |
| submersibility | 23 | - | - |
| subjectability | 30 | - | - |
| sublieutenancy | 21 | - | - |
| successionally | 21 | - | - |
| substitutively | 22 | - | - |
| substitutivity | 22 | - | - |
| subterraneanly | 19 | - | - |
| substantiality | 19 | the quality of being substantial or having substance | - |
| substantivally | 22 | - | - |
| stretchability | 24 | the capacity for being stretched | - |
| staphyloplasty | 27 | - | - |
| stagflationary | 21 | characteristic of or promoting stagflation | - |
| spheroidically | 25 | - | - |
| stoicheiometry | 24 | - | - |
| stochastically | 24 | by stochastic means | we estimated the answer stochastically |
| stoutheartedly | 21 | - | - |
| tautologically | 20 | - | - |
| teleologically | 20 | - | - |
| telescopically | 23 | in a telescopic manner | each of the four legs contains a simple screw jack with a thrust bearing that is operated telescopically inside of two tubes |
| telemetrically | 21 | - | - |
| telesmatically | 21 | - | - |
| synchronically | 27 | - | - |
| syphilitically | 27 | - | - |
| synergetically | 23 | - | - |
| talismanically | 21 | - | - |
| thalassography | 26 | - | - |
| thaumatography | 28 | - | - |
| theocentricity | 24 | - | - |
| theocratically | 24 | - | - |
| televisionally | 20 | - | - |
| teratogenicity | 20 | - | - |
| territoriality | 17 | the behavior of a male animal that defines and defends its territory | - |
| testamentarily | 19 | - | - |
| terotechnology | 23 | - | - |
| tergiversatory | 21 | - | - |
| supernormality | 21 | - | - |
| superintensity | 19 | - | - |
| superciliously | 21 | with a sneer; in an uncomplimentary sneering manner | - |
| supereminently | 21 | - | - |
| supererogatory | 20 | more than is needed, desired, or required | it was supererogatory of her to gloat |
| suspendibility | 22 | - | - |
| suspensibility | 21 | - | - |
| sycophantishly | 30 | - | - |
| symptomatology | 27 | - | - |
| symbiontically | 26 | - | - |
| supersexuality | 26 | - | - |
| supersonically | 21 | - | - |
| suppositiously | 21 | - | - |
| supraliminally | 21 | - | - |
| supramaxillary | 28 | - | - |
| suppositionary | 21 | - | - |
| supplementally | 23 | - | - |
| supplicatingly | 24 | - | - |
| supportability | 23 | - | - |
| indestructibly | 22 | - | - |
| indeterminably | 22 | in an indeterminable manner | their relationship was of an indeterminably vague nature |
| indefinability | 23 | - | - |
| indemonstrably | 22 | - | - |
| incommodiously | 24 | - | - |
| inconsequently | 28 | lacking consequence | - |
| inconsiderably | 22 | - | - |
| inconsistently | 19 | without showing consistency | he acted inconsistently when he bought these stocks |
| inconclusively | 24 | not conclusively | the meeting ended inconclusively |
| incommunicably | 27 | - | - |
| incompressibly | 25 | - | - |
| incontiguously | 20 | - | - |
| indecipherably | 27 | - | - |
| incontrollably | 21 | - | - |
| incorporeality | 21 | the quality of not being physical; not consisting of matter | - |
| infelicitously | 22 | in an infelicitous manner | he chose his words rather infelicitously |
| inframaxillary | 29 | relating to the lower jaw | - |
| infrangibility | 23 | - | - |
| inflammability | 26 | the quality of being easily ignited and burning rapidly | - |
| inflammatorily | 24 | - | - |
| inflectionally | 22 | - | - |
| ingratiatingly | 19 | in a flattering and ingratiating manner | she behaves ingratiatingly toward her boss |
| innumerability | 21 | - | - |
| inhabitability | 24 | - | - |
| inharmoniously | 22 | - | - |
| inheritability | 22 | - | - |
| ineffectuality | 25 | lacking the power to be effective | - |
| indivisibility | 23 | - | - |
| indomitability | 22 | the property being difficult or impossible to defeat | - |
| indubitability | 22 | the quality of being beyond question or dispute or doubt | - |
| ineluctability | 21 | the quality of being impossible to avoid or evade | - |
| inexpressively | 29 | without expression; in an inexpressive manner | she looked at him inexpressively |
| inessentiality | 17 | not of basic importance | - |
| inestimability | 21 | - | - |
| inexcusability | 28 | - | - |
| immunogenicity | 24 | the property of eliciting an immune response | - |
| immitigability | 24 | - | - |
| imperatorially | 21 | - | - |
| imperceptively | 28 | - | - |
| imperceptivity | 28 | - | - |
| imperfectively | 29 | - | - |
| impeachability | 28 | the state of being liable to impeachment | - |
| immethodically | 27 | - | - |
| illegitimately | 20 | of biological parents not married to each other | this child was born illegitimately |
| idealistically | 20 | - | - |
| idiopathically | 25 | - | - |
| illimitability | 21 | - | - |
| illuminatingly | 20 | - | - |
| illustratively | 20 | - | - |
| inapproachably | 28 | - | - |
| inarticulately | 19 | without eloquence; in an inarticulate manner | the freshman expresses his thoughts inarticulately |
| inartificially | 22 | - | - |
| inadvisability | 23 | the quality of being ill-advised | - |
| inalienability | 19 | - | - |
| inalterability | 19 | - | - |
| inartistically | 19 | - | - |
| inauspiciously | 21 | in an inauspicious manner | he started his new job inauspiciously on Friday the 13th |
| incogitability | 22 | - | - |
| inauthenticity | 22 | - | - |
| incandescently | 22 | - | - |
| impermeability | 25 | the property of something that cannot be pervaded by a liquid | - |
| implausibility | 23 | the quality of provoking disbelief | - |
| imperviability | 26 | - | - |
| impressionally | 21 | - | - |
| impracticality | 25 | concerned with theoretical possibilities rather than actual use | - |
| impregnability | 24 | having the strength to withstand attack | - |
| impressibility | 23 | - | - |
| iodometrically | 22 | - | - |
| irreconcilably | 23 | - | - |
| irreducibility | 22 | - | - |
| irrefutability | 22 | - | - |
| irrespectively | 24 | - | - |
| irresponsively | 22 | - | - |
| irresuscitably | 21 | - | - |
| irresolubility | 19 | - | - |
| irremovability | 24 | - | - |
