Synonyms of arbitrary

Adjective

1. arbitrary (vs. nonarbitrary), absolute, capricious, impulsive, whimsical, discretionary, discretional

usage: based on or subject to individual discretion or preference or sometimes impulse or caprice; "an arbitrary decision"; "the arbitrary rule of a dictator"; "an arbitrary penalty"; "of arbitrary size and shape"; "an arbitrary choice"; "arbitrary division of the group into halves"

Definition and meaning of arbitrary (Dictionary)