mercantilist adjective 1noun 1forms 3 adjective1 •Of, pertaining to, or believing in mercantilism. noun1 •One who believes in mercantilism.On this point there was no difference between mercantilists and feudalists, between crowned planners and vested interests, between centralizing bureaucrats and conservative particularists. — 1957 formsmercantilists · more mercantilist · most mercantilist