Collins COBUILD Advanced Learner's English Dictionary - overstep

(oversteps, overstepping, overstepped) If you say that someone oversteps the limits of a system or situation, you mean that they do something that is not allowed or is not acceptable. The Commission is sensitive to accusations that it is overstepping its authority... = go beyond VERB: V n • If someone oversteps the mark, they behave in a way that is considered unacceptable. He overstepped the mark and we had no option but to suspend him. = go too far PHRASE: V inflects