Anabaptist /ænəˈbæptɪst/adjective 2noun 2forms 4 adjective2 •Relating to Anabaptism or the Anabaptists during the Protestant Reformation. •Relating to Anabaptism or the Anabaptists of the present-day. noun2 •A member of a radical wing of Christians during the Protestant Reformation, with a tenet of adult baptism.Were the Anabaptists right? Was happiness Satan’s allure, his tantalizing deceit? — 2008 •A member of any of several present-day churches descended from that origin. formsAnabaptists · anabaptists · more Anabaptist · most Anabaptist