(New American Roget's College Thesaurus)
adj. despotic, dictatorial; capricious; unreasonable; discretionary, willful. See illegality, authority, will.Ant., planned.
(Roget's IV) modif.
1. [Capricious; said of people ]
Syn. willful, capricious, self-assertive, frivolous, injudicious, wayward, offhand, erratic, impulsive, inconsistent, crotchety, irresponsible, opinionated, supercilious, self-willed, whimsical, unreasonable, irrational, toplofty*.
Ant. reasonable*, consistent, rational.
2. [Without adequate determining principle: said of actions or ideas ]
Syn. subjective, unscientific, unreasonable, unpredictable, capricious, random, chance, temporary, unpremeditated, irrational, motiveless, unaccountable, superficial, whimsical, fanciful, freakish, determined by no principle, Depending on the will alone, optional, uncertain, inconsistent, discretionary, subject to individual will, half-baked*.
Ant. judicious*, scientific, considered.
3. [Despotic]
Syn. imperious, dictatorial, tyrannical, dogmatic; see absolute 3 , autocratic 1 .
See Synonym Study at dogmatic .
(Roget's 3 Superthesaurus) (VOCABULARY WORD) a.. [AR bi trer ee]
random, discretionary, capricious.
He didn t go by any set rules; his decision was arbitrary.
SYN.: random, discretionary, capricious, dictatorial, whimsical, fanciful, unscientific, autocratic, personal.
ANT.: objective, by set rules, scientific
(Roget's Thesaurus II) adjective 1. Determined or marked by whim or caprice rather than reason: capricious, whimsical. See SURPRISE. 2. Based on individual judgment or discretion: discretionary, judgmental, personal, subjective. See OPINION, SURPRISE. 3. Having and exercising complete political power and control: absolute, absolutistic, autarchic, autarchical, autocratic, autocratical, despotic, dictatorial, monocratic, totalitarian, tyrannic, tyrannical, tyrannous. See OVER, POLITICS.

English dictionary for students. 2013.


Look at other dictionaries:

  • arbitrary — ar·bi·trary / är bə ˌtrer ē/ adj 1: depending on individual discretion (as of a judge) and not fixed by standards, rules, or law the manner of punishment is arbitrary 2 a: not restrained or limited in the exercise of power an arbitrary government …   Law dictionary

  • Arbitrary — Ar bi*tra*ry, a. [L. arbitrarius, fr. arbiter: cf. F. arbitraire. See {Arbiter}.] 1. Depending on will or discretion; not governed by any fixed rules; as, an arbitrary decision; an arbitrary punishment. [1913 Webster] It was wholly arbitrary in… …   The Collaborative International Dictionary of English

  • arbitrary — [är′bə trer΄ē] adj. [L arbitrarius < arbiter, ARBITER] 1. not fixed by rules, but left to one s judgment or choice; discretionary [arbitrary decision, arbitrary judgment] 2. based on one s preference, notion, whim, etc.; capricious [young… …   English World dictionary

  • arbitrary — [adj1] whimsical, chance approximate, capricious, discretionary, erratic, fanciful, frivolous, inconsistent, injudicious, irrational, irresponsible, offhand, optional, random, subjective, supercilious, superficial, unaccountable, unreasonable,… …   New thesaurus

  • arbitrary — (adj.) early 15c., deciding by one s own discretion, from O.Fr. arbitraire (14c.) or directly from L. arbitrarius depending on the will, uncertain, from arbiter (see ARBITER (Cf. arbiter)). The original meaning gradually descended to capricious… …   Etymology dictionary

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  • arbitrary — ► ADJECTIVE 1) based on random choice or personal whim. 2) (of power or authority) used without constraint; autocratic. DERIVATIVES arbitrarily adverb arbitrariness noun. ORIGIN Latin arbitrarius, from arbiter judge, supreme ruler …   English terms dictionary

  • Arbitrary — For the concept of arbitrariness in trademark law, see Trademark distinctiveness. Arbitrary is a term given to choices and actions which are considered to be done not by means of any underlying principle or logic, but by whim or some decidedly… …   Wikipedia

  • arbitrary — 01. Application of the death penalty is much too [arbitrary] to be allowed in a civilized society. 02. The government has been terrorizing people through [arbitrary] arrests and indefinite detentions. 03. If you don t explain your marking system… …   Grammatical examples in English

  • arbitrary — adjective Date: 15th century 1. depending on individual discretion (as of a judge) and not fixed by law < the manner of punishment is arbitrary > 2. a. not restrained or limited in the exercise of power ; ruling by abso …   New Collegiate Dictionary

  • arbitrary — In an unreasonable manner, as fixed or done capriciously or at pleasure. Without adequate determining principle; not founded in the nature of things; nonrational; not done or acting according to reason or judgment; depending on the will alone;… …   Black's law dictionary

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