- arbitrary
- I(New American Roget's College Thesaurus)adj. despotic, dictatorial; capricious; unreasonable; discretionary, willful. See illegality, authority, will.Ant., planned.II(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 .III(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, scientificIV(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.