(New American Roget's College Thesaurus)
adj. useless, needless, inessential, superfluous, dispensable. See uselessness.
(Roget's IV) modif.
Syn. needless, causeless, fortuitous, casual, chance, haphazard, wanton, accidental, unessential, nonessential, beside the point, irrelevant, futile, extraneous, additional, redundant, useless, exorbitant, superfluous, worthless, undeSirable, optional, avoidable, objectionable, disadvantageous, noncompulsory, random, dispensable, adventitious, without compulsion, uncalled for, pleonastic, gratuitous.
Ant. necessary*, essential, required.
(Roget's 3 Superthesaurus) a.
unneeded, inessential, needless, unrequired, noncompulsory, uncalled-for, gratuitous, superfluous, extraneous, redundant, surplus, expendable.
ANT.: indispensable, essential, needed
(Roget's Thesaurus II) adjective Not necessary: dispensable, inessential, needless, nonessential, uncalled-for, unessential, unneeded, unrequired. See NECESSARY.

English dictionary for students. 2013.


Look at other dictionaries:

  • Unnecessary — Un*nec es*sa*ry, a. Not necessary; not required under the circumstances; unless; needless; as, unnecessary labor, care, or rigor. {Un*nec es*sa*ri*ly}, adv. {Un*nec es*sa*ri*ness}, n. [1913 Webster] …   The Collaborative International Dictionary of English

  • unnecessary — I adjective auxiliary, avoidable, dispensable, excess, excessive, expendable, expletive, extra, extraneous, extrinsic, gratuitous, inessential, irrelevant, needless, non necessarius, noncompulsory, optional, overmuch, redundant, spare,… …   Law dictionary

  • unnecessary — 1540s, from UN (Cf. un ) (1) not + NECESSARY (Cf. necessary). Related: Unnecessarily …   Etymology dictionary

  • unnecessary — [adj] not required accidental, additional, avoidable, beside the point*, casual, causeless, chance, dispensable, excess, exorbitant, expendable, extraneous, extrinsic, fortuitous, futile, gratuitous, haphazard, inessential, irrelevant, lavish,… …   New thesaurus

  • unnecessary — ► ADJECTIVE ▪ not necessary; more than is necessary. DERIVATIVES unnecessarily adverb …   English terms dictionary

  • unnecessary — [unnes′ə ser΄ē] adj. not necessary or required; needless unnecessarily adv …   English World dictionary

  • unnecessary — adj. 1) unnecessary for 2) unnecessary to + inf. (it s unnecessary for us to wait) 3) unnecessary that + clause (it s unnecessary that you should get involved) * * * [ʌn nesəs(ə)rɪ] unnecessary for unnecessary to + inf. (it s unnecessary for us… …   Combinatory dictionary

  • unnecessary — un|ne|ces|sa|ry [ʌnˈnesəsəri US seri] adj not needed or more than is needed unnecessary expense/cost/extravagance etc ▪ an unnecessary expense ▪ There s no point in taking unnecessary risks. ▪ We can t afford any unnecessary delays. ▪ Williams… …   Dictionary of contemporary English

  • unnecessary — un|nec|es|sar|y [ ʌn nesə,seri ] adjective ** 1. ) used for describing something that should not have happened because it could have been avoided: The policy had caused thousands of families unnecessary suffering. The delay was totally… …   Usage of the words and phrases in modern English

  • unnecessary */*/ — UK [ʌnˈnesəs(ə)rɪ] / US [ʌnˈnesəˌserɪ] adjective 1) a) used for describing something that should not have happened because it could have been avoided The policy had caused thousands of families unnecessary suffering. The delay was totally… …   English dictionary

  • unnecessary — adj. VERBS ▪ appear, be, prove, seem ▪ become ▪ make sth, render sth ▪ consider sth …   Collocations dictionary

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