法官执法时不允许有不正当的行为。

Judges cannot permit irregularity in carrying out justice.

《新英汉大辞典》

“他告诉我这事，是因为他知道这是不正当的行为。” 切丽说。

"He told because he knew it wasn't right, " Cherry said.

youdao

在我的想象中，他们似乎有不可思议的能力——知道我在想什么，他们因为任何不正当的行为急不可耐地惩罚我。

In my imagination, they seemed to have an uncanny ability to know what I was thinking, and were eager to punish me for any malfeasance.

youdao

Yeah, I don't think that they acted in a morally appropriate way.

对，我认为他们的行为在道德上不算正当。

耶鲁公开课 - 公正课程节选