monachist noun 1adjective 1forms 1 noun1 •A monk, especially one who was part of the religious reform movement of the fourth century.Indeed, the friars went much farther than the reforming monachists. — 1928 adjective1 •Synonym of monastic.At its beginning, the monachist movement was a non-violent protest against the worldliness of a Church in service to the empire. — 1989 formsmonachists