Entry 1 sense Webster, 1913 Synergetic /sĭn-ẽrj-ĕt'-ĭk/ · Syn·er·get·ic · IPA /ˌsɪn.ɚˈd͡ʒɛt.ɪk/ 01 a. Working together; cooperating; as, synergetic muscles. 1. Working together; cooperating; as, synergetic muscles.