Dictionary and Thesaurus

Definition of Arbitrary

• (a.) Depending on will or discretion; not governed by any fixed rules; as, an arbitrary decision; an arbitrary punishment.
• (a.) Exercised according to one's own will or caprice, and therefore conveying a notion of a tendency to abuse the possession of power.
• (a.) Despotic; absolute in power; bound by no law; harsh and unforbearing; tyrannical; as, an arbitrary prince or government.

Synonyms of Arbitrary

• Tyrannical
• Harsh
• Dictatorial
• Imperious
• Bearing
• Overbearing
• Selfish
• Absolute
• Irresponsible
• Tyrannous
• Domineering
• Peremptory.

Antonyms of Arbitrary

• Mild
• Modest
• Lenient
• Considerate
• Obliging
• Limited
• Equitable
• Constitutional.

Homophones of Arbitrary