arbitrary
🇺🇸
/ˈɑːrbɪtreri/
🇬🇧
/ˈɑːbɪtrəri/
based on personal choice or random chance, not reason or rules
The teacher's decision to give extra homework seemed arbitrary and unfair to the students.
老師決定額外佈置作業的做法似乎很隨意且對學生不公平。
using power without limits or fairness
The king's arbitrary rule angered the people who wanted fair laws.
國王的專橫統治激怒了渴望公平法律的人民。