Entry 3 senses · 2 variants Webster, 1913 Overmatch /ōvˌ-ẽrm-ăch'/ · O·ver·match · IPA /ˌəʊvə(ɹ)ˈmætʃ/ v. t. n. 01 v. t. To be more than equal to or a match for; hence, to vanquish. 1. To be more than equal to or a match for; hence, to vanquish. 2. To marry (one) to a superior.[Obs.] 02 n. One superior in power; also, an unequal match; a contest in which one of the opponents is overmatched. 1. One superior in power; also, an unequal match; a contest in which one of the opponents is overmatched.