Entry 1 sense Webster, 1913 Abalienation /(-āl`yen*ā"shŭn)/ · Ab·al·ien·a·tion · IPA /ˌæbˌeɪl.jəˈneɪ.ʃən/ 01 n. The act of abalienating; alienation; estrangement. 1. The act of abalienating; alienation; estrangement.[Obs.]