Entry 1 sense Webster, 1913 Exclusionary /ĭk-sklo͞ozh'-ən-ĕrˌ-ē/ · Ex·clu·sion·a·ry · IPA /ɪksklˈuːʒənˌɛriː/ 01 a. Tending to exclude; causing exclusion; exclusive. 1. Tending to exclude; causing exclusion; exclusive.