15-letter words containing C
Embark on an exploration of 15-letter words that contain the letter C. This segment uncovers the diverse range of words that incorporate C within this specific length, revealing the versatility and richness of language. Ideal for vocabulary enthusiasts and word-game aficionados.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| congratulations | 18 | an expression of approval and commendation | - |
| electromagnetic | 22 | pertaining to or exhibiting magnetism produced by electric charge in motion | electromagnetic energy |
| psychologically | 31 | with regard to psychology | war that caught them in its toils either psychologically or physically |
| confidentiality | 24 | discretion in keeping secret information | - |
| cinematographer | 25 | a photographer who operates a movie camera | - |
| unconditionally | 21 | in an unqualified manner | - |
| extracurricular | 26 | characterized by adultery | the extracurricular activities of a philandering husband |
| psychotherapist | 30 | a therapist who deals with mental and emotional disorders | - |
| unconsciousness | 19 | a state lacking normal awareness of the self or environment | - |
| dissatisfaction | 21 | the feeling of being displeased and discontent | he was never slow to express his dissatisfaction with the service he received |
| technologically | 26 | by means of technology | technologically impossible |
| acknowledgement | 28 | a statement acknowledging something or someone | - |
| synchronization | 32 | coordinating by causing to indicate the same time | the synchronization of their watches was an important preliminary |
| decontamination | 20 | the removal of contaminants | - |
| confrontational | 20 | of or relating to confrontation | - |
| personification | 22 | representing an abstract quality or idea as a person or creature | - |
| unsophisticated | 23 | not wise in the ways of the world | either too unsophisticated or too honest to promise more than he could deliver |
| inconsequential | 26 | lacking worth or importance | his work seems trivial and inconsequential |
| disenfranchised | 25 | deprived of the rights of citizenship especially the right to vote | - |
| physiologically | 29 | of or relating to physiological processes; with respect to physiology | physiologically ready |
| disrespectfully | 26 | in a disrespectful manner | he treats his parents rather disrespectfully |
| philosophically | 30 | in a philosophic manner | she took it philosophically |
| interchangeable | 23 | capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability | interchangeable electric outlets |
| anthropological | 23 | of or concerned with the science of anthropology | anthropological studies |
| whatchamacallit | 30 | something unspecified whose name is either forgotten or not known | - |
| procrastinating | 20 | - | - |
| excommunication | 30 | the state of being excommunicated | - |
| procrastination | 19 | the act of procrastinating; putting off or delaying or defering an action to a later time | - |
| chronologically | 26 | with respect to chronology | he is chronologically older |
| conscientiously | 22 | with extreme conscientiousness | - |
| democratization | 29 | the action of making something democratic | - |
| sadomasochistic | 25 | of or relating to sadomasochism | sadomasochistic sexual practices |
| competitiveness | 24 | an aggressive willingness to compete | - |
| incompatibility | 26 | the relation between propositions that cannot both be true at the same time | - |
| discombobulated | 25 | having self-possession upset; thrown into confusion | the hecklers pelted the discombobulated speaker with anything that came to hand |
| uncommunicative | 26 | not inclined to talk or give information or express opinions | - |
| crystallization | 29 | a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces | - |
| pharmacological | 27 | of or relating to pharmacology | - |
| destructiveness | 21 | the quality of causing destruction | - |
| uncontroversial | 20 | not likely to arouse controversy | - |
| cinematographic | 27 | - | - |
| impressionistic | 21 | relating to or characteristic of Impressionism | - |
| inconveniencing | 23 | - | - |
| diversification | 24 | the act of introducing variety (especially in investments or in the variety of goods and services offered) | my broker recommended a greater diversification of my investments |
| resourcefulness | 20 | the ability to deal resourcefully with unusual problems | - |
| individualistic | 22 | marked by or expressing individuality | an individualistic way of dressing |
| intellectualism | 19 | - | - |
| intellectuality | 20 | - | - |
| anthropomorphic | 29 | suggesting human characteristics for animals or inanimate things | - |
| microscopically | 28 | by using a microscope; so as to be visible only with a microscope; as seen with a microscope | the blood was examined microscopically |
| neoconservative | 23 | a conservative who subscribes to neoconservatism | - |
| aerodynamically | 26 | - | - |
| synchronisation | 23 | coordinating by causing to indicate the same time | - |
| therapeutically | 25 | for therapeutic purposes | - |
| cardiopulmonary | 25 | of or pertaining to or affecting both the heart and the lungs and their functions | cardiopulmonary resuscitation |
| conservationist | 20 | someone who works to protect the environment from destruction or pollution | - |
| expressionistic | 26 | of or relating to expressionism | - |
| intellectualize | 26 | - | - |
| interconnection | 19 | a state of being connected reciprocally | an interconnection between the two buildings |
| objectification | 31 | a concrete representation of an abstract idea or principle | - |
| vasoconstrictor | 22 | any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure | - |
| succinylcholine | 27 | a muscle relaxant for striated muscle that is used as an adjunct to anesthesia during certain surgical procedures | - |
| compassionately | 24 | in a compassionate manner | - |
| cytomegalovirus | 26 | any of a group of herpes viruses that enlarge epithelial cells and can cause birth defects; can affect humans with impaired immunological systems | - |
| controversially | 23 | involving controversy | - |
| inconspicuously | 24 | in a manner intended to avoid attracting attention | he had entered the room inconspicuously |
| discontinuation | 18 | the act of discontinuing or breaking off; an interruption (temporary or permanent) | - |
| enfranchisement | 25 | a statutory right or privilege granted to a person or group by a government (especially the rights of citizenship and the right to vote) | - |
| acquisitiveness | 29 | strong desire to acquire and possess | - |
| bacteriological | 22 | of or relating to bacteriology | - |
| unceremoniously | 22 | in an unceremonious manner | he was dismissed unceremoniously |
| unprecedentedly | 24 | in an unprecedented manner | - |
| ritualistically | 20 | - | - |
| retrospectively | 25 | in a manner contemplative of past events | retrospectively, he seems like a great artist |
| sympathetically | 30 | in a sympathetic manner | she listened to him sympathetically |
| reconsideration | 18 | thinking again about a choice previously made | - |
| psychopathology | 34 | the branch of medicine dealing with the diagnosis and treatment of mental disorders | - |
| catheterization | 29 | the operation of introducing a catheter into the body | - |
| correspondingly | 24 | - | - |
| contemporaneous | 21 | of the same period | - |
| incommensurable | 23 | impossible to measure or compare in value or size or excellence | - |
| incomprehension | 24 | an inability to understand | his incomprehension of the consequences |
| inconsiderately | 21 | without consideration; in an inconsiderate manner | inconsiderately, he asked to be invited for dinner |
| interdependence | 21 | a reciprocal relation between interdependent entities (objects or individuals or groups) | - |
| neuropsychiatry | 28 | the branch of medicine dealing with mental disorders attributable to diseases of the nervous system | - |
| demographically | 29 | - | - |
| epidemiological | 23 | of or relating to epidemiology | epidemiological studies |
| endocrinologist | 19 | physician who specializes in the diagnosis and treatment of conditions affecting the endocrine system | - |
| euphemistically | 27 | in a euphemistic manner | his violent death was euphemistically referred to as a passing away |
| acclimatization | 30 | adaptation to a new climate (a new temperature or altitude or environment) | - |
| architecturally | 25 | with regard to architecture | this building is ugly, but architecturally interesting |
| unreconstructed | 20 | adhering to an attitude or position widely held to be outmoded | peasants are still unreconstructed small capitalists at heart |
| unselfconscious | 22 | not self-conscious | she grew up with him in unselfconscious friendship |
| voyeuristically | 26 | like a voyeur | he sneaks voyeuristically around the swimming pool |
| unchallengeable | 23 | not open to challenge | unchallengeable facts |
| uncomprehending | 26 | lacking understanding | tried to explain to her uncomprehending husband |
| phosphorescence | 29 | a fluorescence that persists after the bombarding radiation has ceased | - |
| prognosticating | 21 | - | - |
| psychiatrically | 30 | - | - |
| circumferential | 24 | lying around or just outside the edges or outskirts | circumferential highways around cities |
| commercializing | 33 | - | - |
| communicational | 23 | used in communication | he had few communicational grooves available for use |
| counterproposal | 21 | a proposal offered as an alternative to an earlier proposal | - |
| counterbalanced | 22 | brought into equipoise by means of a weight or force that offsets another | - |
| comprehensively | 30 | in an all-inclusive manner | - |
| conventionality | 23 | orthodoxy as a consequence of being conventional | - |
| ineffectiveness | 26 | lacking the power to be effective | - |
| incomprehensive | 27 | not comprehensive | - |
| intensification | 20 | action that makes something stronger or more extreme | - |
| interdependency | 24 | a reciprocal relation between interdependent entities (objects or individuals or groups) | - |
| microelectronic | 23 | of or relating to or consisting of miniature electronic components | - |
| misconstruction | 21 | a kind of misinterpretation resulting from putting a wrong construction on words or actions (often deliberately) | - |
| neurobiological | 20 | of or relating to the biological study of the nervous system | - |
| noncommissioned | 22 | (of military officers) appointed from enlisted personnel | - |
| pessimistically | 24 | with pessimism; in a pessimistic manner | he evaluated his chances for survival rather pessimistically |
| epistemological | 22 | of or relating to epistemology | - |
| exhibitionistic | 29 | compulsively attracting attention to yourself especially by public exposure or exaggerated behavior | - |
| electrochemical | 26 | of or involving electrochemistry | - |
| acclimatisation | 21 | adaptation to a new climate (a new temperature or altitude or environment) | - |
| atherosclerosis | 20 | a stage of arteriosclerosis involving fatty deposits (atheromas) inside the arterial walls, thus narrowing the arteries | - |
| unconventionals | 20 | - | - |
| uncombativeness | 24 | - | - |
| uncinematically | 24 | - | - |
| unchallengingly | 25 | - | - |
| unauthentically | 23 | - | - |
| seroprevalences | 22 | - | - |
| sclerotherapies | 22 | - | - |
| rearticulations | 17 | - | - |
| reaccelerations | 19 | - | - |
| protoceratopses | 21 | - | - |
| preperformances | 26 | - | - |
| preannouncement | 21 | - | - |
| postsecondaries | 20 | - | - |
| recyclabilities | 24 | - | - |
| searchabilities | 22 | - | - |
| radiculopathies | 23 | - | - |
| schizoaffective | 40 | - | - |
| sabermetrically | 24 | - | - |
| revictimization | 31 | - | - |
| superenciphered | 25 | - | - |
| interelectrodes | 18 | - | - |
| decaffeinations | 24 | - | - |
| counterstepping | 22 | - | - |
| antiobscenities | 19 | - | - |
| schlockmeisters | 28 | - | - |
| requalification | 29 | - | - |
| overabstracting | 23 | - | - |
| nonreproducible | 22 | - | - |
| anticorruptions | 19 | - | - |
| unspectacularly | 24 | - | - |
| unintellectuals | 17 | - | - |
| uninstructively | 23 | in an uninformative manner | - |
| unideologically | 22 | - | - |
| untactfulnesses | 20 | - | - |
| anticlericalist | 19 | - | - |
| antiallergenics | 18 | - | - |
| teleconferenced | 23 | - | - |
| urogynecologist | 22 | - | - |
| urogynecologies | 22 | - | - |
| multicandidates | 21 | - | - |
| nondogmatically | 24 | - | - |
| nondramatically | 23 | - | - |
| nonelasticities | 17 | - | - |
| nonfluorescents | 20 | - | - |
| nonfunctionally | 23 | - | - |
| nonhistorically | 23 | - | - |
| nonhysterically | 26 | - | - |
| nondoctrinaires | 18 | - | - |
| noncooperatives | 22 | - | - |
| multicharacters | 24 | - | - |
| multicomponents | 23 | - | - |
| multiconductors | 22 | - | - |
| multielectrodes | 20 | - | - |
| nanocrystalline | 20 | - | - |
| neuroplasticity | 22 | - | - |
| neuroprotective | 22 | - | - |
| nonanalytically | 23 | - | - |
| nonanatomically | 22 | - | - |
| nonbelligerence | 20 | - | - |
| nonconsensually | 20 | - | - |
| nonconvertibles | 22 | - | - |
| nonpsychoactive | 30 | not affecting the mind or mental processes | a nonpsychoactive pain reliever |
| nonrestrictives | 20 | - | - |
| overpredictions | 23 | - | - |
| overstructuring | 21 | - | - |
| participatories | 21 | - | - |
| nonspectaculars | 21 | - | - |
| nontheistically | 23 | - | - |
| overabstraction | 22 | - | - |
| misrecollecting | 22 | - | - |
| compositionists | 21 | - | - |
| corporatization | 28 | - | - |
| counteradaptive | 23 | - | - |
| counterinvasion | 20 | - | - |
| cyclooxygenases | 33 | - | - |
| cytopathologist | 26 | - | - |
| electroporation | 19 | - | - |
| endocannabinoid | 21 | - | - |
| enterotoxigenic | 25 | - | - |
| commoditization | 31 | - | - |
| coadministering | 21 | - | - |
| postapocalypses | 26 | - | - |
| postadolescence | 22 | - | - |
| placelessnesses | 19 | - | - |
| accompanimental | 25 | - | - |
| antioestrogenic | 18 | - | - |
| antituberculars | 19 | - | - |
| bioacousticians | 21 | - | - |
| biocontainments | 21 | - | - |
| bioequivalences | 31 | - | - |
| biopsychologist | 28 | - | - |
| channelopathies | 25 | - | - |
| chemopreventive | 30 | - | - |
| ethnobiological | 23 | - | - |
| intersectionals | 17 | - | - |
| isothiocyanates | 23 | - | - |
| lissencephalies | 22 | - | - |
| microaggressive | 24 | - | - |
| microaggressors | 21 | - | - |
| microcontroller | 21 | - | - |
| microeconomists | 23 | - | - |
| microenterprise | 21 | - | - |
| misarticulation | 19 | - | - |
| exceptionalists | 26 | - | - |
| glycohemoglobin | 29 | - | - |
| hemispherectomy | 32 | - | - |
| hierarchization | 32 | - | - |
| hyperefficiency | 36 | - | - |
| hypervirulences | 28 | - | - |
| hyperproductive | 31 | - | - |
| hyperendemicity | 31 | - | - |
| translucidities | 18 | - | - |
| transmittancies | 19 | - | - |
| trichinisations | 20 | - | - |
| trichinizations | 29 | - | - |
| treacherousness | 20 | - | - |
| traumatological | 20 | - | - |
| trichloroacetic | 24 | - | - |
| tonsillectomies | 19 | - | - |
| tracklessnesses | 21 | - | - |
| tractablenesses | 19 | - | - |
| traceablenesses | 19 | - | - |
| toxicologically | 30 | - | - |
| topochemistries | 24 | - | - |
| topographically | 28 | with regard to topography | the geological environment is the primary factor in determining the character of a country not only topographically but historically |
| touchablenesses | 22 | - | - |
| transhistorical | 20 | - | - |
| transactionally | 20 | - | - |
| transcendencies | 20 | - | - |
| transcendentals | 18 | - | - |
| transcriptional | 19 | - | - |
| transcriptively | 25 | - | - |
| ultramicrometer | 21 | - | - |
| ultramicroscope | 23 | light microscope that uses scattered light to show particles too small to see with ordinary microscopes | - |
| ultramicroscopy | 26 | - | - |
| ultramicrotomes | 21 | - | - |
| ultracentrifuge | 21 | a high speed centrifuge used to determine the relative molecular masses of large molecules in high polymers and proteins | - |
| ultracommercial | 23 | - | - |
| ultraconvenient | 20 | - | - |
| ultracrepidated | 21 | - | - |
| ultracrepidates | 20 | - | - |
| ultrademocratic | 22 | - | - |
| ultrastructural | 17 | - | - |
| unanticipatedly | 23 | - | - |
| unapostolically | 22 | - | - |
| unappreciations | 21 | - | - |
| unascertainable | 19 | not able to be ascertained; resisting discovery | - |
| ultrastructures | 17 | - | - |
| unacceptability | 26 | unsatisfactoriness by virtue of not conforming to approved standards | - |
| unaccommodating | 25 | not accommodating | the unaccommodating bus driver pulled out while she was banging on the door |
| unacquaintances | 28 | - | - |
| trichloroethane | 23 | a heavy colorless highly toxic liquid used as a solvent to clean electronic components and for dry cleaning and as a fumigant; causes cancer and liver and lung damage | - |
| trisoctahedrons | 21 | - | - |
| trisyllabically | 25 | - | - |
| trituberculisms | 21 | - | - |
| trinitrocresols | 17 | - | - |
| trichomonacidal | 25 | - | - |
| trichomonacides | 25 | - | - |
| trigonometrical | 20 | - | - |
| tropicalisation | 19 | - | - |
| tuberculisation | 19 | - | - |
| tuberculization | 28 | - | - |
| tumorgenicities | 20 | - | - |
| typographically | 31 | in a typographic way | - |
| tropicalization | 28 | - | - |
| telangiectasias | 18 | - | - |
| telestereoscope | 19 | - | - |
| teleprocessings | 20 | - | - |
| teleconferences | 22 | - | - |
| teleconnections | 19 | - | - |
| telegraphically | 26 | in a short and concise manner | - |
| telekinetically | 24 | - | - |
| teratocarcinoma | 21 | - | - |
| teratogenicists | 18 | - | - |
| tentaculiferous | 20 | - | - |
| tenaciousnesses | 17 | - | - |
| tendenciousness | 18 | - | - |
| tectibranchiate | 24 | - | - |
| synchronoscopes | 27 | - | - |
| synchronousness | 23 | - | - |
| syncretisations | 20 | - | - |
| syncretizations | 29 | - | - |
| synecdochically | 31 | - | - |
| synecologically | 26 | - | - |
| synergistically | 24 | (of group) in a synergistic or cooperative manner | - |
| synchronologies | 24 | - | - |
| symptomatically | 29 | by symptoms | - |
| symptomatologic | 27 | - | - |
| symptomological | 27 | - | - |
| synchronicities | 25 | - | - |
| synchronistical | 25 | - | - |
| teachablenesses | 22 | - | - |
| technicalnesses | 22 | - | - |
| tachometrically | 27 | - | - |
| tachyarrhythmia | 34 | - | - |
| tachymetrically | 30 | - | - |
| technostructure | 22 | - | - |
| thermoremanence | 24 | - | - |
| thickheadedness | 29 | - | - |
| thermochemistry | 30 | the branch of chemistry that studies the relation between chemical action and the amount of heat absorbed or generated | - |
| thermochromisms | 29 | - | - |
| thermodynamical | 28 | of or concerned with thermodynamics | - |
| thermoelectrons | 22 | - | - |
| thermojunctions | 29 | - | - |
| thermoreceptors | 24 | - | - |
| thoracocenteses | 22 | - | - |
| thoracocentesis | 22 | removal of fluid from the chest by centesis for diagnostic or therapeutic purposes | - |
| thunderstricken | 25 | - | - |
| thyrocalcitonin | 25 | thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone | - |
| thyroidectomies | 26 | - | - |
| thoracoplasties | 22 | - | - |
| threepenceworth | 28 | - | - |
| tetrasyllabical | 22 | - | - |
| thalamencephala | 27 | - | - |
| thalassocracies | 22 | - | - |
| thalassographic | 26 | - | - |
| tetrabranchiate | 22 | - | - |
| tetrabasicities | 19 | - | - |
| thalattocracies | 22 | - | - |
| thanatognomonic | 23 | - | - |
| theorematically | 25 | - | - |
| theosophistical | 25 | - | - |
| theatricalising | 21 | - | - |
| theatricalities | 20 | - | - |
| theatricalizing | 30 | - | - |
| theocentricisms | 24 | - | - |
| unteachableness | 22 | - | - |
| untractableness | 19 | - | - |
| unsymmetrically | 27 | in an asymmetrical manner | - |
| unsuspectedness | 20 | - | - |
| unwelcomenesses | 22 | - | - |
| unpronounceable | 21 | very difficult to pronounce correctly | an unpronounceable foreign word |
| unreconciliable | 21 | - | - |
| unrecommendable | 24 | - | - |
| unrealistically | 20 | in an unrealistic manner | his expectations were unrealistically high |
| unprotectedness | 20 | the property of being helpless in the face of attack | - |
| unpunctualities | 19 | - | - |
| unsociabilities | 19 | - | - |
| unsatisfactions | 20 | - | - |
| unsectarianisms | 19 | - | - |
| viscosimetrical | 24 | - | - |
| voraciousnesses | 20 | - | - |
| wappenschawings | 31 | - | - |
| vivaciousnesses | 23 | - | - |
| vivisectionally | 26 | - | - |
| vivisectionists | 23 | - | - |
| voicelessnesses | 20 | - | - |
| watercolourists | 20 | - | - |
| whimsicalnesses | 25 | - | - |
| weltanschauungs | 24 | - | - |
| viscoelasticity | 25 | - | - |
| ventriloquistic | 29 | - | - |
| veraciousnesses | 20 | - | - |
| vascularisation | 20 | the organic process whereby body tissue becomes vascular and develops capillaries | - |
| vascularization | 29 | the organic process whereby body tissue becomes vascular and develops capillaries | - |
| vicariousnesses | 20 | - | - |
| vicissitudinary | 24 | - | - |
| vicissitudinous | 21 | - | - |
| videoconference | 26 | - | - |
| vindicabilities | 23 | - | - |
| vindicativeness | 24 | - | - |
| vernacularising | 21 | - | - |
| vernacularities | 20 | - | - |
| vernacularizing | 30 | - | - |
| verticillasters | 20 | - | - |
| verticillations | 20 | - | - |
| violinistically | 23 | - | - |
| uncompromisable | 25 | - | - |
| uncopyrightable | 28 | - | - |
| uncourtlinesses | 17 | - | - |
| uncreatednesses | 18 | - | - |
| undecidednesses | 20 | - | - |
| underactivities | 21 | - | - |
| undercapitalise | 20 | - | - |
| uncooperatively | 25 | - | - |
| unconcernedness | 20 | - | - |
| unconnectedness | 20 | the lack of a connection between things | - |
| unconscientious | 19 | not conscientious | - |
| unconsentaneous | 17 | - | - |
| unconstrainable | 19 | - | - |
| unconstrainedly | 21 | - | - |
| undercapitalize | 29 | - | - |
| undernicenesses | 18 | - | - |
| underproduction | 21 | inadequate production or less than expected | - |
| underpublicised | 23 | - | - |
| underpublicized | 32 | - | - |
| uncomprehensive | 27 | - | - |
| unauthenticated | 21 | - | - |
| uncanonicalness | 19 | - | - |
| uncategorisable | 20 | - | - |
| uncategorizable | 29 | - | - |
| unceasingnesses | 18 | - | - |
| uncertainnesses | 17 | - | - |
| unchallengeably | 26 | - | - |
| unchangeability | 26 | the quality of being unchangeable; having a marked tendency to remain unchanged | - |
| unchoreographed | 27 | - | - |
| unchristianised | 21 | - | - |
| unclimbableness | 23 | - | - |
| uncloudednesses | 19 | - | - |
| uncompanionable | 23 | - | - |
| uncompassionate | 21 | lacking compassion or feeling for others | nor silver-shedding tears could penetrate her uncompassionate sire |
| uncomplainingly | 25 | without complaining | an equally gallant little wife and mother uncomplainingly keeping up the production of tasty and nourishing meals |
| uncomplaisantly | 24 | - | - |
| uncomplimentary | 26 | showing or representing unfavorably | an uncomplimentary dress |
| uncleanlinesses | 17 | - | - |
| uncivilizedness | 30 | - | - |
| unchristianises | 20 | - | - |
| unchristianized | 30 | - | - |
| unchristianizes | 29 | - | - |
| unchristianlike | 24 | - | - |
| unchronological | 23 | - | - |
| uncircumcisions | 23 | - | - |
| uncircumscribed | 26 | - | - |
| uncivilisedness | 21 | - | - |
| unintelligences | 18 | - | - |
| unmusicalnesses | 19 | - | - |
| unnecessariness | 17 | - | - |
| unpracticalness | 21 | - | - |
| unpractisedness | 20 | - | - |
| unphilosophical | 27 | - | - |
| unobjectionable | 28 | not causing disapproval | unobjectionable behavior |
| unobjectionably | 31 | - | - |
| unpatriotically | 22 | in an unpatriotic manner | unpatriotically he contrived a way of avoiding military service |
| unpeaceableness | 21 | - | - |
| unperfectnesses | 22 | - | - |
| unequivocalness | 29 | clarity achieved by the avoidance of ambiguity | - |
| unexceptionable | 28 | completely acceptable; not open to exception or reproach | two unexceptionable witnesses |
| unexceptionably | 31 | - | - |
| unexceptionally | 29 | - | - |
| undomesticating | 21 | - | - |
| undisciplinable | 22 | - | - |
| ungrammatically | 25 | in an ungrammatical manner | this child speaks ungrammatically |
| unidiomatically | 23 | - | - |
| xylotypographic | 38 | - | - |
| xerographically | 33 | - | - |
| xenomorphically | 34 | - | - |
| zinckifications | 35 | - | - |
| zygophyllaceous | 38 | - | - |
| zygobranchiates | 35 | - | - |
| zoopsychologies | 35 | - | - |
| zoophytological | 35 | - | - |
| zoogeographical | 33 | - | - |
| scaremongerings | 21 | - | - |
| schoolmastering | 23 | - | - |
| schoolmasterish | 25 | - | - |
| schoolmistressy | 25 | - | - |
| schoolteachings | 26 | - | - |
| scintillascopes | 21 | - | - |
| scintillatingly | 21 | - | - |
| scintillometers | 19 | - | - |
| scintilloscopes | 21 | - | - |
| scholarlinesses | 20 | - | - |
| schizophrenetic | 36 | - | - |
| scathefulnesses | 23 | - | - |
| scentlessnesses | 17 | - | - |
| schematisations | 22 | - | - |
| schematizations | 31 | - | - |
| schillerisation | 20 | - | - |
| schillerization | 29 | - | - |
| schistosomiases | 22 | - | - |
| schistosomiasis | 22 | an infestation with or a resulting infection caused by a parasite of the genus Schistosoma; common in the tropics and Far East; symptoms depend on the part of the body infected | - |
| sclerodermatous | 20 | - | - |
| sclerotisations | 17 | - | - |
| sclerotizations | 26 | - | - |
| seclusivenesses | 20 | - | - |
| secondarinesses | 18 | - | - |
| secretivenesses | 20 | - | - |
| sectionisations | 17 | - | - |
| sectionizations | 26 | - | - |
| secularisations | 17 | - | - |
| secularizations | 26 | - | - |
| secundogeniture | 19 | - | - |
| searchingnesses | 21 | - | - |
| scolopendriform | 25 | - | - |
| scorchingnesses | 23 | - | - |
| scratchbuilders | 25 | - | - |
| scratchbuilding | 26 | - | - |
| scribaciousness | 21 | - | - |
| scrimshandering | 24 | - | - |
| scrumptiousness | 21 | - | - |
