laicist adjective 1noun 1forms 3 adjective1 •Pertaining to or representing the interests of the laity; non-clerical; secular. noun1 •A supporter of laicism; a secularist.Thirty years later, with the connivance of the Parti Quebecois, the laicists proceeded to attack Catholic schools by means of the Proulx Report of 1999. — 2004 formslaicists · more laicist · most laicist