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Glossary · Nouns · U

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TermTypeDefinitionClassificationsUpdated
Undernourishmentnounnot having enough food to develop or function normallyverifiedMay 18, 2026
Underpantsnounan undergarment that covers the body from the waist no further than to the thighsverifiedMay 18, 2026
Underpartnouna part lying on the lower side or underneath an animal's bodyverifiedMay 18, 2026
Underpassnounan underground tunnel or passage enabling pedestrians to cross a road or railwayverifiedMay 18, 2026
Underpaymentnouna payment smaller than needed or expectedverifiedMay 18, 2026
Underperformernouna student who does not perform as well as expected or as well as the IQ indicatesverifiedMay 18, 2026
Underproductionnouninadequate production or less than expectedverifiedMay 18, 2026
Underratingnounan estimation that is too lowverifiedMay 18, 2026
Underreckoningnounan estimation that is too lowverifiedMay 18, 2026
Underrepresentationnounwhen members of discernible groups are not consistently present in representative bodies and among measures of well-being in numbers roughly proportionate to their numbers within the population.VulnerabilityMay 18, 2026
Undersealnounseal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosionverifiedMay 18, 2026
Undersecretarynouna secretary immediately subordinate to the head of a department of governmentverifiedMay 18, 2026
Undersellernouna seller that sells at a lower price than others doverifiedMay 18, 2026
Undershirtnouna collarless men's undergarment for the upper part of the bodyverifiedMay 18, 2026
Undershrubnouna low shrubverifiedMay 18, 2026
Undersidenounthe lower side of anythingverifiedMay 18, 2026
Underskirtnounundergarment worn under a skirtverifiedMay 18, 2026
Undersoilnounthe layer of soil between the topsoil and bedrockverifiedMay 18, 2026
Understandabilitynounthe quality of comprehensible language or thoughtverifiedMay 18, 2026
Understatementnouna statement that is restrained in ironic contrast to what might have been saidverifiedMay 18, 2026
Understructurenounlowest support of a structureverifiedMay 18, 2026
Undersurfacenounthe lower side of anythingverifiedMay 18, 2026
Undertakernounone whose business is the management of funeralsverifiedMay 18, 2026
Undertakingnounany piece of work that is undertaken or attemptedverifiedMay 18, 2026
Undertidenouna current below the surface of a fluidverifiedMay 18, 2026
Undertonenouna subdued emotional quality underlying an utteranceverifiedMay 18, 2026
Undertownounthe seaward undercurrent created after waves have broken on the shoreverifiedMay 18, 2026
Undervaluationnountoo low a value or price assigned to somethingverifiedMay 18, 2026
Underwater ArchaeologynounMWEthe archeology of underwater sitesverifiedMay 18, 2026
Underwater ArcheologynounMWEthe archeology of underwater sitesverifiedMay 18, 2026
Underwater DivernounMWEsomeone who works underwaterverifiedMay 18, 2026
Underwearnounundergarment worn next to the skin and under the outer garmentsverifiedMay 18, 2026
Underwingnounmoth having dull forewings and brightly colored hind wingsverifiedMay 18, 2026
Underwoodnounthe brush (small trees and bushes and ferns etc.) growing beneath taller trees in a wood or forestverifiedMay 18, 2026
Underworldnoun(religion) the world of the deadverifiedMay 18, 2026
Underwriternouna banker who deals chiefly in underwriting new securitiesverifiedMay 18, 2026
Undescended TesticlenounMWEa testis that fails to move into the scrotum as the male fetus developsverifiedMay 18, 2026
Undescended TestisnounMWEa testis that fails to move into the scrotum as the male fetus developsverifiedMay 18, 2026
Undesirabilitynounthe quality possessed by something that should be avoidedverifiedMay 18, 2026
Undiesnounwomen's underwearverifiedMay 18, 2026
Undinenounany of various female water spiritsverifiedMay 18, 2026
Undisciplinenounthe trait of lacking disciplineverifiedMay 18, 2026
Undivided InterestnounMWEthe interest in property owned by tenants whereby each tenant has an equal right to enjoy the entire propertyverifiedMay 18, 2026
Undivided RightnounMWEthe interest in property owned by tenants whereby each tenant has an equal right to enjoy the entire propertyverifiedMay 18, 2026
Undoernouna person who destroys or ruins or lays waste toverifiedMay 18, 2026
Undoingnounan act that makes a previous act of no effect (as if not done)verifiedMay 18, 2026
Undulant FevernounMWEinfectious bacterial disease of human beings transmitted by contact with infected animals or infected meat or milk productsverifiedMay 18, 2026
Undulationnoun(physics) a movement up and down or back and forthverifiedMay 18, 2026
Undulatory TheorynounMWE(physics) the theory that light is transmitted as wavesverifiedMay 18, 2026
Undutifulnessnounimpiety characterized by lack of devotion to dutyverifiedMay 18, 2026
Unearned IncomenounMWE(accounting) income received but not yet earned (usually considered a current liability on a company's balance sheet)verifiedMay 18, 2026
Unearned IncrementnounMWEan unearned rise in the market value of property resulting from general market factorsverifiedMay 18, 2026
Unearned RevenuenounMWE(accounting) income received but not yet earned (usually considered a current liability on a company's balance sheet)verifiedMay 18, 2026
Unearned RunnounMWEa run that was scored as a result of an error by the other teamverifiedMay 18, 2026
Uneasenounphysical discomfort (as mild sickness or depression)verifiedMay 18, 2026
Uneasinessnounembarrassment deriving from the feeling that others are critically aware of youverifiedMay 18, 2026
Uneducated PersonnounMWEan ignorant personverifiedMay 18, 2026
Unemotional PersonnounMWEsomeone who is seemingly indifferent to emotionsverifiedMay 18, 2026
Unemotionalitynounapathy demonstrated by an absence of emotional reactionsverifiedMay 18, 2026
Unemployed PersonnounMWEsomeone who is joblessverifiedMay 18, 2026
Unemploymentnounthe state of being unemployed or not having a jobverifiedMay 18, 2026
Unemployment CompensationnounMWEpayment by a United States agency to unemployed peopleverifiedMay 18, 2026
Unemployment LinenounMWEa queue of people waiting for employmentverifiedMay 18, 2026
Unemployment RatenounMWEthe percentage of the work force that is unemployed at any given dateverifiedMay 18, 2026
Unenlightenmentnouna lack of understandingverifiedMay 18, 2026
Unequivocalnessnounclarity achieved by the avoidance of ambiguityverifiedMay 18, 2026
unescorted accessnounMWENot having to be escorted to gain access to a facility, area, or system.ControlRegulatedMay 9, 2026
Uneven BarsnounMWEa pair of parallel bars set at different heightsverifiedMay 18, 2026
Uneven Parallel BarsnounMWEa pair of parallel bars set at different heightsverifiedMay 18, 2026
Unevennessnounthe quality of being uneven and lacking uniformityverifiedMay 18, 2026
Unexchangeabilitynounthe quality of being incapable of exchange or interchangeverifiedMay 18, 2026
Unexpectednessnounextraordinariness by virtue of being unexpectedverifiedMay 18, 2026
Unexplainablenounimpossibility of providing an explanation for certain decisions made by an intelligent system which is both 100% accurate and comprehensible.VulnerabilityMay 18, 2026
Unfairnessnouninjustice by virtue of not conforming with rules or standardsverifiedMay 18, 2026
Unfaithfulnessnounthe quality of being unfaithfulverifiedMay 18, 2026
Unfamiliaritynoununusualness as a consequence of not being well knownverifiedMay 18, 2026
Unfastenernouna person who unfastens or unwraps or opensverifiedMay 18, 2026
Unfasteningnounloosening the ties that fasten somethingverifiedMay 18, 2026
Unfavorable JudgmentnounMWEdisapproval expressed by pointing out faults or shortcomingsverifiedMay 18, 2026
Unfavorable PositionnounMWEthe quality of being a competitive disadvantageverifiedMay 18, 2026
Unfavorablenessnounthe quality of not being encouraging or indicative of successverifiedMay 18, 2026
Unfavourablenessnounthe quality of not being encouraging or indicative of successverifiedMay 18, 2026
Unfeasibilitynounthe quality of not being doableverifiedMay 18, 2026
Unfeelingnessnoundevoid of passion or feelingverifiedMay 18, 2026
Unfinished BusinessnounMWEwork that is left incompleteverifiedMay 18, 2026
Unfitnessnounthe quality of not being suitableverifiedMay 18, 2026
Unfoldingnouna developmental processverifiedMay 18, 2026
Unformatted CapacitynounMWE(computer science) the total number of bytes on a disk including the space that will be required to format itverifiedMay 18, 2026
Unfortunate PersonnounMWEa person who suffers misfortuneverifiedMay 18, 2026
Unfriendlinessnoundislike experienced as an absence of friendlinessverifiedMay 18, 2026
Ungainlinessnounthe carriage of someone whose movements and posture are extremely ungainly and inelegantverifiedMay 18, 2026
Ungodlinessnounimpiety by virtue of not being a godly personverifiedMay 18, 2026
Ungracefulnessnounan unpleasant lack of grace in carriage or form or movement or expressionverifiedMay 18, 2026
Ungraciousnessnounan offensive lack of good mannersverifiedMay 18, 2026
Ungradable OppositionnounMWEan opposition that has no intermediate gradeverifiedMay 18, 2026
Ungrateful PersonnounMWEa person who shows no gratitudeverifiedMay 18, 2026
Ungratefulnessnouna lack of gratitudeverifiedMay 18, 2026
Unguentnounsemisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritationverifiedMay 18, 2026
Unguiculate MammalnounMWEa mammal having nails or clawsverifiedMay 18, 2026
Unguisnounany rigid body structure composed primarily of keratinverifiedMay 18, 2026