nonessential, useless, dispensible, expendable; irrelevant, extraneous; superfluous, redundant, supererogatory, Fr. de trop, excess, in excess, spare; tautological, pleonastic, expletive, excessive, over and above.
unnerve, v. discourage, unman, dishearten, dispirit, demoralize; deject, deflate, Inf. take the wind out of one's sails; disconcert, discompose, unsettle, discomfit, abash; unsettle, agitate, disquiet, perturb, ruffle, rattle, fluster; upset, trouble, worry, Inf. shake up, Sl. psych out, intimidate; dismay, daunt, Inf. faze, Inf. throw off balance, Inf. throw for a loss, stun, stupefy.
unobtrusive, adj. low-key, restrained, unpresuming, unpresumptive; unpretentious, informal, inconspicuous, casual, homey, comfortable, Inf. comfy; unaffected, natural, genuine, ingenuous, Inf. regular, Inf. O.K.; unostentatious, unpompous, unshowy; unassuming, modest, unarrogant, unconceited, unvain; humble, self-effacing, self-humbling, content to stay in the background; retiring, shy, demure, reserved, reticent, diffident; simple, quiet, plain, homely, down-to-earth; unaggressive, unassertive, docile, mild, meek, submissive.
unoccupied, adj. 1. untenanted, tenantless, vacant, empty; unclaimed, available, Inf. up for grabs.
2. uninhabited, unpopulated, unpeopled, depopulated; deserted, abandoned; desolate, forsaken, godforsaken; lifeless, lone, lonely, solitary; unfrequented, unvisited, unsettled.
3. unbusied, idle, inactive; loafing, resting, do-nothing; at liberty, at leisure, leisured, Inf. off; unemployed, out of work, uninvolved.
unorganized, adj. 1. disorganized, unmethodical, unsystematic, unsystematized, unclassified, unarranged; indiscriminate, promiscuous, haphazard, random, irregular, disjointed; casual, aimless, pell-mell, helter-skelter.
2. disorderly, confused, chaotic, all mixed-up, upside down, Inf. topsy-turvy; at sixes and sevens, muddled, jumbled, hugger-mugger, scrambled, tangled; disordered, out of order, out of place, disarranged, in disarray, deranged; untidy, cluttered, messy, disheveled, Inf mussed up, messed up, ruffled up, rumpled; careless, slipshod, poor; unready, unprepared, Inf like a chicken with its head cut off.
unorthodox, adj. 1. heterodox, heretical, infidelic; unscriptural, uncanonical, unofficial, unauthoritative.
2. unconventional, uncommon, unusual, uncustomary, unwonted, out of the ordinary; unconforming, nonconforming, unobservant, nonobservant; deviant, deviative, divergent, aberrant; anomalous, abnormal, irregular, heteroclite.
unpalatable, adj. unsavory, savorless, untoothsome, unappetizing, nauseating, nauseous, sickening; bitter, sour, rancid, turned; uninviting, undesirable, unattractive, disagreeable, unpleasant, unpleasing, displeasing, distasteful; inedible, uneatable, undelectable; disgusting, noisome, Sl. yukky, Sl. gross; repugnant, offensive, obnoxious, shocking, nasty; repulsive, repelling, repellent, revolting, objectionable.
unparalleled, adj. unequaled, matchless, peerless, unmatched, unexcelled, unrivaled, without equal, Fr. sans pareil; incomparable, inimitable, unmatchable; unsurpassed, unapproachable, beyond compare; unprecedented, unexampled, unheard-of; unique, one of a kind, special, singular, distinctive, rare, unusual; supreme, superior, greatest, chief, foremost, best, champion, Australian, bonzer, second to none, of the first water; consummate, transcendent, quintessential, superlative.