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: Where all think alike, no one thinks very much.: Walter LippmannLatest queries: wattage, testimonial, warp, subordination, extrovert, basket, humanitarian, vagaries, virtuoso, periods, niece, hypostases, circumcise, circumcise, optometer, technocrat, sera, speck, nostrum, arbitrary,