Webster's Unabridged Dictionary - Letter U - Page 13
Undirect (v. t.) To misdirect; to mislead.
Undirect (a.) Indirect.
Undirected (a.) Not directed; not guided; left without direction.
Undirected (a.) Not addressed; not superscribed, as a letter.
Undirected (a.) Misdirected; misled; led astray.
Undirectly (adv.) Indirectly.
Undiscerning (n.) Want of discernment.
Undisclose (v. t.) To keep close or secret.
Undiscreet (a.) Indiscreet.
Undispensable (a.) Indispensable.
Undispensable (a.) Unavoidable; inevitable.
Undispensable (a.) Not to be freed by dispensation.
Undispensed (a.) Not dispensed.
Undispensed (a.) Not freed by dispensation.
Undisposedness (n.) Indisposition; disinclination.
Undisputable (a.) Indisputable.
Undistinctive (a.) Making no distinctions; not discriminating; impartial.
Undistinctly (adv.) Indistinctly.
Undistinguishing (a.) 無辨別能力的；感覺遲鈍的 Failing to distinguish; undiscerning.
Compare: Distinguish
Distinguish (v.) [With object] 區別；識別 [（+from）]；（憑感覺器官）辨認出 Recognize or treat (someone or something) as different.
‘The child is perfectly capable of distinguishing reality from fantasy.’
Distinguish (v.) [No object ] 區別；識別；辨別 [（+between）] Recognize or point out a difference.
‘We must distinguish between two kinds of holiday.’
Distinguish (v.) [With object] Be an identifying characteristic or mark of.
‘What distinguishes sport from games?’
Distinguish (v.) [With object] Manage to discern (something barely perceptible)
‘It was too dark to distinguish anything more than their vague shapes.’
Distinguish (v.) [With object] (Distinguish oneself) Make oneself worthy of respect by one's behaviour or achievements.
‘Many distinguished themselves in the fight against Hitler.’
Compare: Undiscerning
Undiscerning (a.) 無辨別能力的；感覺遲鈍的 Lacking judgement, insight, or taste.
‘An undiscerning audience.’
Undivided (a.) Not divided; not separated or disunited; unbroken; whole; continuous; as, plains undivided by rivers or mountains.
Undivided (a.) Not set off, as a share in a firm; not made actually separate by division; as, a partner, owning one half in a firm, is said to own an undivided half so long as the business continues and his share is not set off to him.
Undivided (a.) Not directed or given to more than one object; as, undivided attention or affection.
Undivided (a.) Not lobed, cleft, or branched; entire.
Undividual (a.) Indivisible.
Undivisible (a.) Indivisible.
Undo (v. t.) To reverse, as what has been done; to annul; to bring to naught.
Undo (v. t.) To loose; to open; to take to piece; to unfasten; to untie; hence, to unravel; to solve; as, to undo a knot; to undo a puzzling question; to undo a riddle.
Undo (v. t.) To bring to poverty; to impoverish; to ruin, as in reputation, morals, hopes, or the like; as, many are undone by unavoidable losses, but more undo themselves by vices and dissipation, or by indolence.
Undock (v. t.) To take out of dock; as, to undock a ship.
Undocumented (a.) 無正式文件的；無事實證明的 Not documented: such as
a : Not supported by documentary evidence・undocumented expenditures.
b : Lacking documents required for legal immigration or residence・undocumented workers.
Compare: Expenditure
Expenditure (n.) (C2) [ C or U ] （政府或個人的）全部開支，花費 The total amount of money that a government or person spends.
// It's part of a drive to cut government expenditure.
// The government's annual expenditure on arms has been reduced.
Expenditure (n.) [ U ] （精力、時間或錢的）耗費，花費 The act of using or spending energy , time, or money.
// The expenditure of effort on this project has been enormous.
Compare: Immigration
Immigration (n.) [ U ] (B2) 移民（入境） The act of someone coming to live in a different country.
// There are strict limits on immigration (into the country).
Immigration (n.) [ U ] (B1) 移民局入境檢查；移民局入境檢查處 The process of examining your passport and other documents to make certain that you can be allowed to enter the country, or the place where this is done.
// After you've been through immigration (control), you can go and get your luggage. Immigration policy.
// Immigration officers
Undoer (n.) One who undoes anything; especially, one who ruins another.
Undoing (n.) The reversal of what has been done.
Undoing (n.) Ruin.
Undomesticate (v. t.) To make wild or roving.
Undone () p. p. of Undo.
Undone (a.) Not done or performed; neglected.
Undouble (v. t.) To unfold, or render single.
Undoubtable (a.) Indubitable.
Undoubted (a.) Not doubted; not called in question; indubitable; indisputable; as, undoubted proof; undoubted hero.
Undrape (v. t.) To strip of drapery; to uncover or unveil.
Undraw (v. t.) To draw aside or open; to draw back.
Undreamed (a.) Alt. of Undreamt.
Undreamt (a.) Not dreamed, or dreamed of; not th/ught of; not imagined; -- often followed by of.
Undress (v. t.) To divest of clothes; to strip.
Undress (v. t.) To divest of ornaments to disrobe.
Undress (v. t.) To take the dressing, or covering, from; as, to undress a wound.
Undress (n.) A loose, negligent dress; ordinary dress, as distinguished from full dress.
Undress (n.) An authorized habitual dress of officers and soldiers, but not full-dress uniform.
Undubitable (a.) Indubitable; as, an undubitable principle.
Undue (a.) 【文】[Z] [B] 過度的；過分的；不適當的；不正當的；未到（支付）期的 Not due; not yet owing; as, an undue debt, note, or bond.
Undue (a.) Not right; not lawful or legal; improper; as, an undue proceeding. -- Bacon.
Undue (a.) Not agreeable to a rule or standard, or to duty; disproportioned; excessive; immoderate; inordinate; as, an undue attachment to forms; an undue rigor in the execution of law.
Undue influence (Law), Any improper or wrongful constraint, machination, or urgency of persuasion, by which one's will is overcome and he is induced to do or forbear an act which he would not do, or would do, if left to act freely. -- Abbott.
Undue (a.) Not yet payable; "an undue loan" [ant: due].
Undue (a.) Not appropriate or proper (or even legal) in the circumstances; "undue influence"; "I didn't want to show undue excitement"; "accused of using undue force" [ant: due].
Undue (a.) Lacking justification or authorization; "desire for undue private profit"; "unwarranted limitations of personal freedom" [syn: undue, unjustified, unwarranted].
Undue (a.) Beyond normal limits; "excessive charges"; "a book of inordinate length"; "his dress stops just short of undue elegance"; "unreasonable demands" [syn: excessive, inordinate, undue, unreasonable].
Undueness (n.) The quality of being undue.
Unduke (v. t.) To deprive of dukedom.
Undulant (a.) 起伏的 Undulating. [R.]
Undulant (a.) Resembling waves in form or outline or motion [syn: undulatory, undulant].
Undulant (a.) Rising and falling in waves.
Undulant (a.) Having a wavy form, outline, or surface <played her approach shot onto the undulant green>.
Undulant fever, () An infectious disease due to the bacteria Brucella that characteristically causes rising and falling fevers, sweats, malaise, weakness, anorexia, headache, myalgia (muscle pain) and back pain.
Undulary (a.) Moving like waves; undulatory.
Undulate (a.) Same as Undulated.
Undulated (imp. & p. p.) of Undulate.
Undulating (p. pr. & vb. n.) of Undulate.
Undulate (v. t.) 使波動；使起伏；使成波浪形 To cause to move backward and forward, or up and down, in undulations or waves; to cause to vibrate.
Breath vocalized, that is, vibrated and undulated. -- Holder.
Undulate (v. i.) （水面等）波動，起浪；（地形、聲音等）起伏；（指表面）呈波浪形 To move in, or have, undulations or waves; to vibrate; to wave; as, undulating air.
Undulate (a.) 波浪形的；起伏的 Having a wavy margin and rippled surface.
Undulate (v.) Stir up (water) so as to form ripples [syn: ripple, ruffle, riffle, cockle, undulate].
Undulate (v.) Occur in soft rounded shapes; "The hills rolled past" [syn: roll, undulate].
Undulate (v.) Move in a wavy pattern or with a rising and falling motion; "The curtains undulated"; "the waves rolled towards the beach" [syn: roll, undulate, flap, wave].
Undulate (v.) Increase and decrease in volume or pitch, as if in waves; "The singer's voice undulated".
Undulated (a.) 波狀的；Undulate 的動詞過去式、過去分詞 Resembling, or in the nature of, waves; having a wavy surface; undulatory.
Undulated (a.) (Bot.) Waved obtusely up and down, near the margin, as a leaf or corolla; wavy.
Undulated (a.) (Zool.) Formed with elevations and depressions resembling waves; having wavelike color markings; as, an undulated shell.
Undulating (a.) 波浪起伏的；波浪形的；（音量，高音等）波動的；Undulate 的動詞現在分詞、動名詞 Rising and falling like waves; resembling wave form or motion; undulatory; rolling; wavy; as, an undulating medium; undulating ground. -- Un"du*la`ting*ly. adv.
Undulation (n.) （水面等的）波動；小浪；（土地等的）起伏；【物】（聲、光等的）波盪 The act of undulating; a waving motion or vibration; as, the undulations of a fluid, of water, or of air; the undulations of sound.
Undulation (n.) A wavy appearance or outline; waviness. -- Evelyn.
Undulation (n.) (Mus.) The tremulous tone produced by a peculiar pressure of the finger on a string, as of a violin.
Undulation (n.) (Mus.) The pulsation caused by the vibrating together of two tones not quite in unison; -- called also beat.
Undulation (n.) (Physics.) A motion to and fro, up and down, or from side to side, in any fluid or elastic medium, propagated continuously among its particles, but with no translation of the particles themselves in the direction of the propagation of the wave; a wave motion; a vibration.
Undulation (n.) An undulating curve [syn: wave, undulation].
Undulation (n.) Wavelike motion; a gentle rising and falling in the manner of Waves.
Undulation (n.) (Physics) A movement up and down or back and forth [syn: wave, undulation].
Undulationist (n.) (Archaic) One who advocates the undulatory theory of light. -- Whewell.
Undulative (a.) 波動的；起伏的；波狀的 (= Undulatory) Consisting in, or accompanied by, undulations; undulatory.
Undulatory (a.) 波動的；起伏的 Moving in the manner of undulations, or waves; resembling the motion of waves, which successively rise or swell rise or swell and fall; pertaining to a propagated alternating motion, similar to that of waves.
Undulatory theory, or Wave theory (of light) (Opt.), That theory which regards the various phenomena of light as due to undulations in an ethereal medium, propagated from the radiant with immense, but measurable, velocities, and producing different impressions on the retina according to their amplitude and frequency, the sensation of brightness depending on the former, that of color on the latter. The undulations are supposed to take place, not in the direction of propagation, as in the air waves constituting sound, but transversely, and the various phenomena of refraction, polarization, interference, etc., are attributable to the different affections of these undulations in different circumstances of propagation. It is computed that the frequency of the undulations corresponding to the several colors of the spectrum ranges from 458 millions of millions per second for the extreme red ray, to 727 millions of millions for the extreme violet, and their lengths for the same colors, from the thirty-eight thousandth to the sixty thousandth part of an inch. The theory of ethereal undulations is applicable not only to the phenomena of light, but also to those of heat.
Undulatory (a.) Resembling waves in form or outline or motion [syn: undulatory, undulant].
Undulatory (a.) Of or relating to undulation : Moving in or resembling waves : Undulating.
Undull (v. t.) To remove the dullness of; to clear.
Undulous (a.) Undulating; undulatory.
Unduly (adv.) 過度地，過分地；不適當地；不正當地 In an undue manner.
Unduly (adv.) To an undue degree; "she was unduly pessimistic about her future".
Undumpish (v. t.) To relieve from the dumps.
Undust (v. t.) To free from dust.
Undwellable (a.) Uninhabitable.
Undwelt (a.) Not lived (in); -- with in.
Undying (a.) Not dying; imperishable; unending; immortal; as, the undying souls of men.
Uneared (a.) Not eared, or plowed.
Unearned (a.) Not earned; not gained by labor or service.
Unearthed (imp. & p. p.) of Unearth.
Unearthing (p. pr. & vb. n.) of Unearth.
Unearth (v. t.) To drive or draw from the earth; hence, to uncover; to bring out from concealment; to bring to light; to disclose; as, to unearth a secret.
Unearthly (a.) Not terrestrial; supernatural; preternatural; hence, weird; appalling; terrific; as, an unearthly sight or sound.
Unease (n.) Want of ease; uneasiness.
Uneasity (adv.) In an easy manner.
Uneasiness (n.) The quality or state of being uneasy; restlessness; disquietude; anxiety.
Uneasiness (n.) The quality of making uneasy; discomfort; as, the uneasiness of the road.
Uneasy (a.) 心神不安的；擔心的 [（+about）]；拘束的，不自在的 Not easy; difficult.
Uneasy (a.) Restless; disturbed by pain, anxiety, or the like; disquieted; perturbed.
Uneasy (a.) Not easy in manner; constrained; stiff; awkward; not graceful; as, an uneasy deportment.
Uneasy (a.) Occasioning want of ease; constraining; cramping; disagreeable; unpleasing.
Uneath (a.) Not easy; difficult; hard.
Uneath (adv.) Not easily; hardly; scarcely.
Unedge (v. t.) To deprive of the edge; to blunt.
Unefectual (a.) Ineffectual.
Unelaborated (a.) giving only major points; lacking completeness; "a sketchy account"; "details of the plan remain sketchy". [syn: sketchy].
Unelastic (a.) Not elastic; inelastic.
Unelasticity (n.) Inelasticity.
Unelegant (a.) Inelegant.