courteous Play adjectivePolite, respectful, or considerate in manner. SYNONYMS affablechivalrouscivilcivilizedconsideratecordialcourtlycultivateddecentdecorousdeferentialdiplomaticdiscreetformalgallantgenialgenteelgentlemanlygraciouskindladylikemannerlyobligingpleasantpolishedpoliteproperrefinedrespectfultactfulthoughtfulurbanewell behavedwell bredwell brought upwell manneredwell spoken