conventionalist noun 3adjective 1forms 3 noun3 •A person of conventional behaviour or beliefs. •A supporter or adherent of conventionalism. •A member or supporter of the French National Convention. adjective1 •Of, pertaining to, or supporting conventionalismMinimal entities would thus be language-dependent in this conventionalist sense. — 2008 formsconventionalists · more conventionalist · most conventionalist