Definition of Arbitrary:

  1. Based on bias or prejudice, not on fact or reason. See also capricious.

  2. Based on individual discretion, not on an objective criteria.

  3. Based on random choice or personal whim, rather than any reason or system.

Synonyms of Arbitrary

Absolute, Absolutist, Absolutistic, Aristocratic, Arrogant, Autarchic, Authoritarian, Authoritative, Autocratic, Autonomous, Bossy, Capricious, Careless, Chance, Chancy, Cranky, Crotchety, Despotic, Dictatorial, Discretional, Discretionary, Dogmatic, Domineering, Doubtful, Elective, Erratic, Fanciful, Fantasied, Fantastic, Feudal, Flaky, Freakish, Free, Free will, Gratuitous, Grinding, Harebrained, Heedless, High-handed, Humorsome, Iffy, Imperative, Imperial, Imperious, Impetuous, Inadvertent, Inconsiderate, Inconsistent, Independent, Indiscreet, Irrational, Kinky, Kooky, Lordly, Maggoty, Magisterial, Magistral, Masterful, Monocratic, Moody, Motiveless, Nonmandatory, Notional, Offered, Oppressive, Optional, Oracular, Overbearing, Overruling, Peremptory, Petulant, Precipitate, Proffered, Quirky, Random, Rash, Reasonless, Repressive, Screwball, Self-acting, Self-active, Self-determined, Self-determining, Severe, Spontaneous, Strict, Subjective, Summary, Suppressive, Temperamental, Thoughtless, Tyrannical, Tyrannous, Unasked, Unbesought, Unbidden, Uncalculating, Uncalled-for, Uncertain, Uncoerced, Uncompelled, Uncompromising, Unconstrained, Undisciplined, Unforced, Unguarded, Uninfluenced, Uninvited, Unpredictable, Unpressured, Unprompted, Unreasonable, Unreasoning, Unreflecting, Unrequested, Unrequired, Unrestrained, Unruly, Unsolicited, Unsought, Unthinking, Unthoughtful, Vagarious, Vagrant, Varying, Voluntary, Volunteer, Wanton, Wayward, Whimsical, Wild, Willful, Zany, Capricious, Whimsical, Random, Chance, Erratic, Unpredictable, Inconsistent, Wild, Hit-or-miss, Haphazard, Casual

How to use Arbitrary in a sentence?

  1. His mealtimes were entirely arbitrary.
  2. His decision to fire Jane and not Hue was very arbitrary , as both had done outstanding work at the company and both had always treated him with great respect.
  3. Your opinions are arbitrary , nobody cares what you think at all in fact you could probably die and no one would miss you.
  4. Jack made an arbitrary decision on the other members of the group, selecting them because they were his friends, not because they had any sort of qualifications that would help the group become better.

Meaning of Arbitrary & Arbitrary Definition