Browse Other U Word Lengths
18-Letter U Words by Ending Letter
All 153 18-Letter Words Starting With U
ultrabiomicroscopyA technique that combines ultrasonic waves and microscopy to image biological tissues with high resolution and contrast.ultrabrachycephalybrachycephaly to an even more extreme degree than hyperbrachycephalyultracentrifugallyBy means of an ultracentrifugeultraconscientiousExtremely conscientious.ultracontractivityThe property of being ultracontractive.ultracryomicrotomeA cryoscopic ultramicrotomeultracryomicrotomymicrotomy by means of an ultracryomicrotomeultradiafiltrationultrafiltration or diafiltration (used, more or less, synonymously)ultrafilterabilityThe quality or degree of being ultrafilterable.ultrafractionationfractionation by means of an ultracentrifugeultraimperialisticExtremely imperialistic.ultrametamorphosis(geology) A form of metamorphosis that occurs at a temperature and pressure just below the fusion point of the rockultrametricizationThe process, or the result of ultrametricizingultramicroanalysisAn analysis on a smaller scale than microanalysis.ultramicrochemicalRelating to ultramicrochemistry.ultramicrohardnessThe microhardness of a very thin filmultramicroorganismAny ultramicroscopic organism.ultramicroscopicalultramicroscopicultramorphologicalRelating to ultramorphologyultranationalisticVery radically nationalistic.ultraphytoplanktonSynonym of nanophytoplankton.ultrarepublicanismVery strong republican beliefs.ultrarevolutionaryBeing revolutionary beyond normal practices, intensely revolutionary.ultrarevolutionismExtremely revolutionary doctrines or actions.ultrarevolutionistSynonym of ultrarevolutionary.ultrasedimentationsedimentation by means of an ultracentrifugeultrasonographicalultrasonographicultrasonologicallyIn terms of, or by means of, ultrasound.ultrasonotomographA device that produces ultrasonotomograms.ultrasophisticatedextremely sophisticatedunaccomplishednessThe quality of being unaccomplished.unantagonisticallyWithout antagonism.unappreciativenessThe quality of being unappreciative.unapprehensivenessThe quality of not being apprehensive.unapproachablenessQuality of being unapproachable.unaristocraticallyIn an unaristocratic manner.unbefuckinlievableAlternative spelling of unbefuckinglievable.unbureaucraticallyIn an unbureaucratic way.unbusinesslikenessThe quality or condition of being unbusinesslike.uncircumscriptibleNot circumscriptible.uncircumstantiallyIn an uncircumstantial manner.unclassifiablenessThe quality of being unclassifiable.uncommensurabilitySynonym of incommensurability.uncommodifiabilityThe property of not being commodifiable.uncommunicablenessThe quality of being uncommunicable.uncompanionabilityThe state or condition of being uncompanionable; aloofness.uncompromisingnessThe condition of being uncompromisingunconceptualizableNot conceptualizable.unconditionabilityThe quality of being unconditionable.unconscionablenessThe quality of being unconscionable.unconstitutionallyIn a manner or to an extent that is unconstitutional.unconstructivenessThe quality of being unconstructive.uncontrollablenessThe state or quality of being uncontrollable.uncontroulablenessObsolete form of uncontrollableness.unconventionalnessThe quality of being unconventional.unconversationallyIn an unconversational manner.unconvinceablenessThe state or condition of being unconvinceable.uncopyrightability(copyright law) The condition of being uncopyrightable.undecylprodigiosin(organic chemistry) The undecyl derivative of prodigiosinundenominationallyIn an undenominational manner.undepartmentalizedNot divided into departments; not departmentalizedunderaccommodation(sociolinguistics) Insufficient convergence; the situation where a speaker is underaccommodative.underaccommodative(sociolinguistics) insufficiently accommodativeunderamplificationinsufficient amplificationunderapproximationAn approximation that is lower than the true value.underascertainmentInsufficient ascertainmentunderassertivenessA tendency toward being underassertive; social timidity.undercarboxylationThe quality of being undercarboxylated.undercharacterisedNon-Oxford British standard spelling of undercharacterized.undercharacterizedInsufficiently characterized.underchoreographedInadequately choreographed.undercommunicationToo little communication.underconnectedness(rare) The condition of being underconnectedundercontextualiseAlternative form of undercontextualize.undercontextualize(transitive) To contextualize inadequately.underdeterminationThe state or quality of being underdeterminedunderdevelopednessSynonym of underdevelopment (“state or condition of being underdeveloped”).underextrapolationinsufficient extrapolationunderfertilizationInadequate fertilization; the underuse of fertilizer.underglycolysationMisspelling of underglycosylation.underglycosylationLess than normal glycosylation.underhydroxylation(biochemistry) Insufficient hydroxylation (typically of collagen)underinclusivenessThe quality of being underinclusive.underparameterizedInsufficiently parameterizedunderparticipationInadequate participation.underproliferationInsufficient proliferationunderqualificationThe condition of being underqualified.underresuscitation(medicine) The administration of an inadequate amount of fluid during an attempt to resuscitate somebody.undersecretaryshipThe office or position of undersecretary.underspecificationInadequate specification; failure to specify in enough detail.understandablenessThe state, quality, or condition of being understandable.undifferentiatableThat cannot be differentiatedundiminishablenessThe quality of being undiminishable.undiscoverablenessThe quality of being undiscoverable.undiscriminatinglyWithout discriminating.undiscriminatorilyWithout discrimination.undisputatiousnessThe quality of being undisputatious.undistinguishinglyWithout distinguishing.unelectrospinnableNot electrospinnableunembarrassabilityThe quality of being unembarrassable.unenterprisingnessThe quality of being unenterprising.unenthusiasticallyIn an unenthusiastic way; without enthusiasm.unexceptionabilityThe quality of being unexceptionable.unidentifiablenessThe quality of being unidentifiable.unimplementabilityquality or state of being impossible to implementunincorporatednessThe quality of being unincorporated.unindividualizableNot individualizable.unintellectualizedNot intellectualized.unintelligiblenessThe extent to which something is unintelligible; the difficulty of understanding something.unintermittingnessThe quality of being unintermitting.uninterpretabilityThe condition of being uninterpretableuninterruptibilityThe state or condition of being uninterruptible.universalisability(chiefly philosophy) The quality (as of a rule) of being able to be applied universally; that is, to any given situation with no exceptions.universalizabilityAlternative spelling of universalisability.unjournalisticallyIn an unjournalistic manner.unmarriageablenessThe quality of being unmarriageable.unmelodramaticallyIn an unmelodramatic manner.unmisinterpretableThat cannot be misinterpreted.unnaturalisticallyIn an unnaturalistic manner.unobjectionabilityThe quality of being unobjectionable.unorthographicallyIn an unorthographical manner.unostentatiousnessThe quality of being unostentatious.unparallelablenessThe state or condition of being unparallelable; unmatchableness.unphiloprogenitiveNot philoprogenitive.unphosphorylatableNot phosphorylatableunpremeditatednessThe quality of being unpremeditated.unpresumptuousnessThe quality of being unpresumptuous.unprofessionalnessSynonym of unprofessionalism.unquantifiableness(rare) Unquantifiability.unquestionablenessThe property of being unquestionable.unrecognizablenessThe quality of being unrecognizable.unreconcilablenessThe quality of being unreconcilable.unremunerativenessThe quality of being unremunerative.unrepresentabilityThe quality of being unrepresentable.unrepresentativelyIn an unrepresentative mannerunreproachablenessThe quality of being unreproachable.unsatisfactorinessThe state or condition of being unsatisfactory.unsentimentalizingpresent participle and gerund of unsentimentalizeunsubstitutabilityThe quality of not being substitutable.unsupernaturalizedNot supernaturalized.untranslatablenessThe quality or property of being untranslatable; inability to be translated.untransliteratable(rare) That cannot be transliterated.untransmittabilityThe condition of being untransmittableureterocystoplasty(surgery) Repair to the urinary bladder and the ureterureterolithotripsy(surgery) The breakup and subsequent removal of stones in the ureterureteronephrectomy(surgery, medicine) A surgical procedure to remove a ureter and a kidney (unilateral procedure) or both ureters and both kidneys (bilateral procedure).ureteroproctostomy(medicine) A form of urinary diversion involving the creation of an anastomosis between a ureter and the rectum.ureteropyelography(medicine) Contrast radiography of a ureter and the adjacent renal pelvis (either unilaterally or bilaterally).ureteropyeloscopicRelating to ureteropyeloscopy.urethrocystoscopicRelating to urethrocystoscopyurethrographicallyBy means of urethrography.ustilaginomycetousRelating to smut (fungus) of the class UstilaginomycetesutilitarianizationThe process of making something utilitarian.
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