overstep the mark

English

Alternative forms

• overstep the line

Verb

overstep the mark (third-person singular simple present oversteps the mark, present participle overstepping the mark, simple past and past participle overstepped the mark)

1. (idiomatic) To behave in an unacceptable or morally reprehensible way.

   Synonyms: go too far, cross the line