Synonyms of 'arbitrary'

absolute, arrogant, authoritarian, authoritative, bossy, careless, chance, crotchety, domineering, doubtful, fanciful, flaky, free, gratuitous, heedless, kinky, lordly, masterful, oppressive, precipitate, rash, repressive, self-determined, severe, spontaneous, strict, summary, temperamental, unbesought, unbidden, uncalled-for, uncertain, unconstrained, unguarded, uninvited, unrestrained, unruly, vagrant, voluntary, volunteer, wanton, wild, vagarious, unthoughtful, unthinking, unsought, unsolicited, unrequested, unreflecting, unreasoning, unreasonable, unprompted, unpredictable, uninfluenced, unforced, undisciplined, uncompromising, unasked, tyrannous, tyrannical, thoughtless, subjective, self-acting, screwball, random, quirky, petulant, peremptory, overbearing, oracular, optional, notional, moody, magistral, magisterial, kooky, irrational, indiscreet, independent, inconsistent, inconsiderate, inadvertent, impetuous, imperious, imperial, imperative, iffy, high-handed, harebrained, free will, freakish, feudal, fantastic, erratic, elective, dogmatic, discretionary, discretional, dictatorial, despotic, cranky, chancy, capricious, autonomous, autocratic, aristocratic, zany, willful, whimsical, wayward