arbitraryKK [ˋɑrbəˏtrɛri] /ˈɑɹbəˌtɹɛɹi/形容詞1任意的、隨意的、恣意的The deadline felt completely arbitrary, with no real reason behind it.這個截止日期感覺完全是隨意訂的,背後沒有什麼實際理由。2專斷的、獨斷的、霸道的貶義Citizens are protected from arbitrary arrest by the constitution.憲法保障公民不受專斷逮捕。3任選的、任意的數學Let x be an arbitrary number greater than zero.設 x 為任選一個大於零的數。