Webster's Unabridged Dictionary - Letter U - Page 26

Unswathe (v. t.) To take a swathe from; to relieve from a bandage; to unswaddle. -- Addison.

Unswayable (a.) Not capable of being swayed. -- Shak.

Unswear (v. t.) To recant or recall, as an oath; to recall after having sworn; to abjure. -- J. Fletcher.

Unswear (v. i.) To recall an oath. -- Spenser.

Unsweat (v. t.) To relieve from perspiration; to ease or cool after exercise or toil. [R.] -- Milton.

Unswell (v. t.) To sink from a swollen state; to subside. [Obs.] -- Chaucer.

Unsymmetrical (a.) 非對稱的,不均勻的,不調和的 Wanting in symmetry, or due proportion pf parts.

Unsymmetrical (a.) (Biol.) Not symmetrical; being without symmetry, as the parts of a flower when similar parts are of different size and shape, or when the parts of successive circles differ in number. See Symmetry.

Unsymmetrical (a.) (Chem.)  Being without symmetry of chemical structure or relation; as, an unsymmetrical carbon atom.

Unsymmetrical carbon atom (Chem.), One which is united at once to four different atoms or radicals. This condition usually occasions physical isomerism, with the attendant action on polarized light.

Unsymmetrical (a.) Lacking symmetry [syn: {unsymmetric}, {unsymmetrical}].

Unsymmetrical (a.) Having unsymmetrical parts or unequal dimensions or measurements [syn: {anisometric}, {unsymmetrical}].

Unsymmetrical dimethylhydrazine (n.) 偏二甲肼,或稱1,1-二甲基聯氨、偏二甲基聯胺、偏二甲基肼,分子式(CH3)2NNH2,英文縮寫UDMHUnsymmetrical dimethylhydrazine),無色易燃液體。 Unsymmetrical dimethylhydrazine (UDMH; 1,1-dimethylhydrazine) is a chemical compound with the formula H2NN(CH3)2. It is a colorless liquid, with a sharp, fishy, ammoniacal smell typical for organic amines. Samples turn yellowish on exposure to air and absorb oxygen and carbon dioxide. It mixes completely with water, ethanol, and kerosene. In concentration between 2.5% and 95% in air, its vapors are flammable. It is not sensitive to shock. 1,2-Dimethylhydrazine (CH3NHNHCH3) is also known but is not as useful.[4]

Unsymmetrically (adv.) Not symmetrically.

Unsymmetrically (adv.) In an asymmetrical manner; "they were asymmetrically arranged" [syn: {asymmetrically}, {unsymmetrically}] [ant: {symmetrically}].

Unsympathy (n.) Absence or lack of sympathy.

Untack (v. t.) To separate, as what is tacked; to disjoin; to release.

Being untacked from honest cares. -- Barrow.

Untackle (v. t.) To unbitch; to unharness. [Colloq.] -- Tusser.

Untalked (a.) Not talked; not mentioned; -- often with of. -- Shak.

Untangibility (n.) Intangibility.

Untangible (a.) Intangible. [R.]

Untangibly (adv.) Intangibly. [R.]

Untangle (v. t.) To loose from tangles or intricacy; to disentangle; to resolve; as, to untangle thread.

Untangle but this cruel chain. -- Prior.

Untangle (v.) Release from entanglement of difficulty; "I cannot extricate myself from this task" [syn: extricate, untangle, disentangle, disencumber].

Untangle (v.) Become or cause to become undone by separating the fibers or threads of; "unravel the thread" [syn: unravel, unknot, unscramble, untangle, unpick] [ant: knot, ravel, tangle].

Untappice (v. i.) To come out of concealment. [Obs.] -- Massinger.

Untaste (v. t.) To deprive of a taste for a thing. [R.] -- Daniel.

Unteach (v. t.) To cause to forget, or to lose from memory, or to disbelieve what has been taught.

Experience will unteach us. -- Sir T. Browne.

One breast laid open were a school Which would unteach mankind the lust to shine or rule. -- Byron.

Unteach (v. t.) To cause to be forgotten; as, to unteach what has been learned. -- Dryden.

Unteach (v.) Cause to disbelieve; teach someone the contrary of what he or she had learned earlier.

Unteach (v.) Cause to unlearn; "teach somebody to unlearn old habits or methods".

Unteam (v. t.) To unyoke a team from. [R.] -- Jer. Taylor.

Untemper (v. t.) To deprive of temper, or of the proper degree of temper; to make soft.

Untemperate (a.) Intemperate. [Obs.]

Untemperately (adv.) Intemperately.

Untempter (n.) One who does not tempt, or is not a tempter. [Obs.] -- Wyclif.

Untenable (a.) See {tenable}.

Untenable (a.) 難以防守的,不能防守的;(論據等)站不住腳的;不能租賃的 (Of theories etc) Incapable of being defended or justified [syn: {indefensible}, {untenable}].

Untenant (v. t.) To remove a tenant from. [R.] -- Coleridge.

Untent (v. t.) To bring out of a tent. [R.] -- Shak.

Untented (a.) Having no tent or tents, as a soldier or a field.

Untented (a.) Not tended; not dressed. See 4th Tent.

The untented woundings of a father's curse Pierce every sense about thee! -- Shak.

Unthank (n.) No thanks; ill will; misfortune. [Obs.]

Unthank come on his head that bound him so. -- Chaucer.

Unthink (v. t.) To recall or take back, as something thought. -- Shak.

Unthinker (n.) A person who does not think, or does not think wisely.

Unthinking (a.) Not thinking; not heedful; thoughtless; inconsiderate; as, unthinking youth.

Unthinking (a.) Not indicating thought or reflection; thoughtless.

With earnest eyes, and round unthinking face, He first the snuffbox opened, then the case. -- Pope. -- Un*think"ing*ly, adv. -- Un*think"ing*ness, n.

Unthinking (adv.) In a thoughtless manner; "he stared thoughtlessly at the picture" [syn: thoughtlessly, unthinkingly, unthinking] [ant: thoughtfully].

Unthinking (a.) Not exhibiting or characterized by careful thought [syn: unreflective, unthinking, unthoughtful].

Unthinking (a.) Without care or thought for others; "the thoughtless saying of a great princess on being informed that the people had no bread; `Let them eat cake'" [syn: thoughtless, uncaring, unthinking]

Unthinking (a.) Mentally sluggish [syn: lumpish, lumpen, unthinking].

Unthread (v. t.) To draw or take out a thread from; as, to unthread a needle.

Unthread (v. t.) To deprive of ligaments; to loose the ligaments of.

Unthread (v. t.) To make one's way through; to traverse; as, to unthread a devious path.

Untrift (n.) Want of thrift; untriftiness; prodigality.

Untrift (n.) An unthrifty.

Unthrift (a.) Unthrifty.

Unthriftfully (adv.) Not thriftily.

Unthriftihead (n.) Alt. of Unthriftihood.

Unthriftihood (n.) Untriftiness.

Unthriftily (adv.) Not thriftily.

Unthriftily (adv.) Improperly; unbecomingly.

Unthriftiness (n.) The quality or state or being unthrifty; profuseness; lavishness.

Unthrifty (a.) Not thrifty; profuse.

Unthrone (v. t.) To remove from, or as from, a throne; to dethrone.

Untidy (a.) Unseasonable; untimely.

Untidy (a.) Not tidy or neat; slovenly.

Untie (v. t.) To loosen, as something interlaced or knotted; to disengage the parts of; as, to untie a knot.

Untie (v. t.) To free from fastening or from restraint; to let loose; to unbind.

Untie (v. t.) To resolve; to unfold; to clear.

Untie (v. i.) To become untied or loosed.

Untighten (v. t.) To make less tight or tense; to loosen.

Until (prep.) To; unto; towards; -- used of material objects.

Until (prep.) To; up to; till; before; -- used of time; as, he staid until evening; he will not come back until the end of the month.

Until (conj.) As far as; to the place or degree that; especially, up to the time that; till. See Till, conj.

Untile (v. t.) To take the tiles from; to uncover by removing the tiles.

Untime (n.) An unseasonable time.

Untimeliness (n.) Unseasonableness.

Untimely (a.) Not timely; done or happening at an unnatural, unusual, or improper time; unseasonable; premature; inopportune; as, untimely frosts; untimely remarks; an untimely death.

Untimely (adv.) Out of the natural or usual time; inopportunely; prematurely; unseasonably.

Untimeous (a.) Untimely.

Untimeously (adv.) Untimely; unseasonably.

Untithed (a.) Not subjected tithes.

Untitled (a.) Not titled; having no title, or appellation of dignity or distinction.

Untitled (a.) Being without title or right; not entitled.

Unto (prep.) To; -- now used only in antiquated, formal, or scriptural style. See To.

Unto (prep.) Until; till.

Unto (conj.) Until; till.

Untold (a.) Not told; not related; not revealed; as, untold secrets.

Untold (a.) Not numbered or counted; as, untold money.

Untolerable (a.) Intolerable.

Untomb (v. t.) To take from the tomb; to exhume; to disinter.

Untongue (v. t.) To deprive of a tongue, or of voice.

Untooth (v. t.) To take out the teeth of.

Untouchable, () See touchable.

Untouchable (a.) Beyond the reach of criticism or attack or impeachment; "for the first time criticism was directed at a hitherto untouchable target" -- Newsweek.

Untouchable (a.) Impossible to assail [syn: unassailable, untouchable].

Untouchable (a.) Forbidden to the touch; "in most museums such articles are Untouchable."

Untouchable (a.) ( Especially used in traditional Hindu belief of the lowest caste or castes) Defiling.

Untouchable (a.) Not capable of being obtained; "a rare work, today almost inaccessible"; "timber is virtually unobtainable in the islands"; "untouchable resources buried deep within the earth" [syn: inaccessible, unobtainable, unprocurable, untouchable].

Untouchable (n.) Belongs to lowest social and ritual class in India [syn: untouchable, Harijan].

Untouchable (a.) (Protected) 不可懲罰的;不許批評的;不可改變的 Not able to be punished, criticized, or changed in any way.

// He believed the police would never arrest him, that he was untouchable.

Untouchable (a.) (Not defeated) 無法擊敗的;無法企及的 Not able to be defeated or to be as good as.

// Coventry City have proved untouchable this season - they've just won their sixth consecutive game.

Untouchable (n.) [ C ] (印度社會的)賤民,不可接觸者 A member of the lowest social group in Indian society.

Untoward (prep.) Toward.

Untoward (a.) Froward; perverse.

Untoward (a.) Awkward; ungraceful.

Untoward (a.) Inconvenient; troublesome; vexatious; unlucky; unfortunate; as, an untoward wind or accident.

Untowardly (a.) Perverse; froward; untoward.

Untraded (a.) Not dealt with in trade; not visited for purposes of trade. [Obs.] -- Hakluyt

Untraded (a.) Unpracticed; inexperienced. [Obs.] -- Udall.

Untraded (a.) Not traded in or bartered; hence, not hackneyed; unusual; not common. -- Shak.

Untrained (a.) Not trained.

Untrained (a.) Not trainable; indocile.

Untrammeled (a.) Not hampered or impeded; free. [Written also untrammelled.]

Untrammeled (a.) Not confined or limited; "the gift of a fresh eye and an untrammeled curiosity"- Russell Lord; "the untrammeled rush that the snows had shown in the first spring sun" -- Farley Mowat [syn: untrammeled, untrammelled].

Untraveled (a.) Not traveled; not trodden by passengers; as, an untraveled forest.

Untraveled (a.) Having never visited foreign countries; not having gained knowledge or experience by travel; as, an untraveled Englishman. -- Addison.

Untraveled (a.) Not traveled over or through; "untraveled roads" [syn: untraveled, untravelled] [ant: traveled].

Untread (v. t.) To tread back; to retrace. -- Shak.

Untreasure (v. t.) To bring forth or give up, as things previously treasured. "The quaintness with which he untreasured, as by rote, the stores of his memory." -- J. Mitford.

Untreasured (a.) Deprived of treasure.  [Obs.] -- Shak.

Untreasured (a.) Not treasured; not kept as treasure.

Untreatable (a.) Incapable of being treated; not practicable. [R.] -- Dr. H. More.

Untrenched, () See trenched.

Untrenched (a.) Being without trenches; whole; intact. [Obs.]

Untressed (a.) Not tied up in tresses; unarranged; -- said of the hair. -- Chaucer.

Untrowable (a.) Incredible. [Obs.] "Untrowable fairness." -- Wyclif.

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