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arbitrary

/ˈɑɹ.bɪ.tɹɛ(ə).ɹi/adjective

Decided by personal whim or chance rather than by any objective reason or system.

Example sentences

  • “The seating order was completely arbitrary.”
  • “Pick an arbitrary number between one and a hundred.”

In loose talk it means random, but its serious sense involves unchecked power: arbitrary arrests, arbitrary rules. Stronger than it sounds.

Synonyms for arbitrary

Antonyms

  • reasoned
  • logical
  • systematic

On the Academic Word List. Find it in: Academic vocabulary.

Related words

archaicBelonging to a much earlier time; old-fashioned and no longer in common use.aptitudeA natural talent for learning or doing something well.archeryThe sport or skill of shooting arrows from a bow.aptWell suited to the situation; fitting.ardentFeeling or showing intense enthusiasm or passion.approveTo officially accept or agree to a plan, request, or decision.