楯突く

彼は会議の席で上司に楯突いた。

He defied his boss at the meeting.

親に楯突くなんて、十年早い。

You're far too young to be defying your parents.

社長に楯突いた社員は地方へ飛ばされた。

The employee who stood up to the president was transferred out to a regional office.