1 capricious, varying, erratic, uncertain, inconsistent, doubtful, unpredictable, whimsical, irrational, chance, random, inconsistent, subjective, unreasoned, irrational, Colloq chancy, iffy:
The choices are entirely arbitrary, totally at the whim of the council and not based on research or knowledge.
2 absolute, tyrannical, despotic, authoritarian, magisterial, summary, peremptory, autocratic, dogmatic, imperious, uncompromising, inconsiderate, high-handed, dictatorial, Rare thetic(al):
The conduct of the archbishop appears to have been arbitrary and harsh.
completely, entirely, purely, quite, wholly | fairly, rather, somewhat, to some extent
The decision is to some extent arbitrary.
| essentially | apparently
Random quote: Every great advance in science has issued from a new audacity of the imagination.: John DeweyLatest queries: pretty, discrete, expected, conclude, component, vitality, screwed, appropriate, array, excursion, regime, assure, sustain, interact, commit, issue, palaeo-, project, priority, arbitrary,