Definition of arbitrary
1a : existing or coming about seemingly at random or by chance or as a capricious and unreasonable act of will an arbitrary choice When a task is not seen in a meaningful context it is experienced as being arbitrary.— Nehemiah Jordan
b : based on or determined by individual preference or convenience rather than by necessity or the intrinsic nature of something an arbitrary standard take any arbitrary positive number
2a : not restrained or limited in the exercise of power : ruling by absolute authority an arbitrary government
b : marked by or resulting from the unrestrained and often tyrannical exercise of power protection from arbitrary arrest and detention
3 law : depending on individual discretion (as of a judge) and not fixed by law The manner of punishment is arbitrary.
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