arbitrary
US /ˈɑːr.bə.trer.i/
UK /ˈɑːr.bə.trer.i/

1.
武斷的, 任意的
based on random choice or personal whim, rather than any reason or system
:
•
The committee made an arbitrary decision without consulting anyone.
委員會在未諮詢任何人的情況下做出了武斷的決定。
•
His choice of colors seemed completely arbitrary.
他對顏色的選擇似乎完全是隨意的。
2.
專橫的, 獨斷的
(of power or a ruling body) unrestrained and autocratic in the use of authority
:
•
The dictator's rule was arbitrary and oppressive.
獨裁者的統治是專橫和壓迫性的。
•
Citizens feared the arbitrary arrests by the secret police.
公民們害怕秘密警察的任意逮捕。