com·mu·ni·tar·i·an I. \kəˌmyünəˈterēən, -taar-, -tār-\noun (-s) Etymology:community + -arian; translation of French communautaire : an advocate of communitarianism : a member of a community practicing communitarianism II. \ ̷ ̷| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷\adjective : advocating, practicing, or based on communitarianism