Skip to main content
arbitrary

arbitrary

92 6.1
Not decided by a clear reason or rule but by personal choice
  • adjective
  • /ˈɑːrbɪtreri/
translation icon : arbitrario
  • The committee made an arbitrary choice about the project's future without any clear criteria.
  • an arbitrary decision
  • an arbitrary rule
  • arbitrary and capricious

That is just a random, arbitrary, nonsensical statement.

Autoplay Next

Examples

  • But the boundaries that you are transgressing are arbitrary.

  • Ordinary Indians have few means to defend themselves against the arbitrary acts of chief and council.

    Fiction book (2002)
  • But it's, it's so arbitrary and yet specific.

  • But this is not quite so arbitrary, it seems.

  • Understand, none of this was arbitrary.

  • Or do you find this rule too arbitrary or too rigid?

  • These divisions of time are purely arbitrary.

  • Aren't you being rather arbitrary?

  • Those rules may seem arbitrary at times, they may seem impossible at times, they may seem unfair or onerous, but they are rules nonetheless.

  • On the other hand, this may be seen as an arbitrary and unjustified dividing line.

    Academic text (1999)

Synonyms

random
vsarbitrary
527 3.4

Happening without a plan and by chance

is chosen by personal whim or individual will rather than by reason

Antonyms

382 3.8

Based on clear thinking and facts rather than emotion

66 4.6

Done in a careful planned way

How Arbitrary

capricious
19 7.9
haphazard
7.0
arbitrary
92 6.1
systematic
66 4.6
methodical
35 4.1

Surface Forms

arbitrary positive

Morphology

arbitrary = arbitr + ary

Although formed from a Latin combining form related to judging, the modern sense 'based on random choice or whim' has shifted and is not directly derivable by an average B1 learner from the parts.

Etymology

Arbitrary comes from the old Latin word arbiter, which means 'judge' or 'someone who decides'. So arbitrary originally meant a choice made by one person's decision, and today it describes something done by personal whim or without a fair system.