traditionalist noun 2adjective 1forms 3 noun2 •A person who adheres to tradition, especially in cultural or religious practices.Pullman traditionalists will no doubt maintain that the full-service-at-every-seat principle is popular with their clientele; […]. — 1962 •A traditional climbing climber. adjective1 •Adhering to tradition, especially in religious practices. formstraditionalists · more traditionalist · most traditionalist