What does "arbitrary" mean?

Arbitrary: Exercised according to one's own will or caprice, and therefore conveying a notion of a tendency to abuse the possession of power. Arbitrary power is most easily established on the ruins of liberty abused licentiousness. Washington.

Additional senses

  1. 2.Despotic; absolute in power; bound by no law; harsh and unforbearing; tyrannical; as, an arbitrary prince or government. Dryden. Arbitrary constant, Arbitrary function (Math.), a quantity of function that is introduced into the solution of a problem, and to which any value or form may at will be given, so that the solution may be made to meet special requirements. -- Arbitrary quantity (Math.), one to which any value can be assigned at pleasure.

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