Entry 2 senses · 2 variants Webster, 1913 Litigant /lĭt'-ĭg-ənt/ · Lit·i·gant · IPA /ˈlɪtɪɡənt/ a. n. 01 a. Disposed to litigate; contending in law; engaged in a lawsuit; as, the parties litigant. 1. Disposed to litigate; contending in law; engaged in a lawsuit; as, the parties litigant. 02 n. A person engaged in a lawsuit. 1. A person engaged in a lawsuit.