over·step [overstepoverstepsoversteppedoverstepping] BrE [ˌəʊvəˈstep] NAmE [ˌoʊvərˈstep] verb (-pp-)~ sth to go beyond what is normal or allowed •to overstep your authority •He tends to overstep the boundaries of good taste. Idiom: ↑overstep the mark Verb forms: