adjective (a)

• based on or subject to individual discretion or preference or sometimes impulse or caprice

  berdasarkan kepada individu atau subjek kebijaksanaan atau kecenderungan atau terkadang impuls atau kerenah

  Example:
  An arbitrary decision.
  The arbitrary rule of a dictator.
  An arbitrary penalty.
  Of arbitrary size and shape.
  An arbitrary choice.
  Arbitrary division of the group into halves.
  

  Antonym:
  nonarbitrary, unarbitrary
  

  source: wordnet30
• Depending on will or discretion; not governed by any fixed rules; as, an arbitrary decision; an arbitrary punishment.

  tergantung pada atau kebijaksanaan; tidak diatur oleh setiap peraturan ditetapkan; sebagai, sebuah i arbitrari/ keputusan saya; sebuah i arbitrari/ aku hukuman.

  source: webster1913