Word Type

Adjective

Noun

Adjective

The word "arbitrary" can be used as adjective, noun and adjective.

Word Relationships

Opposites (Antonyms)

nonarbitrary

Derived Terms

arbitrarily arbitrariness arbitrarity arbitrary unit arbitrary-precision arithmetic cultural arbitrary nonarbitrary unarbitrary

Context

linguistics mathematics

Related Terms

arbit arbiter arbitrable arbitrage arbitrary and capricious arbitrary law arbitrate arbitration arbitrator

Related Terms

arbiter heavy handed iconic impulse objective random reason

Similar Terms

absolute absolute capricious capricious discretional discretionary discretionary impulsive whimsical

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.