Entry 1 sense Webster, 1913 Comportment /kəm-pôr'-tmənt/ · Com·port·ment · IPA /kəmˈpɔɹt.mənt/ 01 n. Manner of acting; behavior; bearing. 1. Manner of acting; behavior; bearing. “A graceful comportment of their bodies.” — Cowley. “Her serious and devout comportment.” — Addison.