Entry 1 sense Webster, 1913 Evolutionary /ĕvˌ-əl-o͞osh'-ən-ĕrˌ-ē/ · Ev·o·lu·tion·a·ry · IPA /ˌiː.vəˈluː.ʃən.ɛɹ.i/ 01 a. Relating to evolution; as, evolutionary discussions. 1. Relating to evolution; as, evolutionary discussions.