heroic UK /hɪˈɹəʊ.ɪk/US /hɪˈɹoʊ.ɪk/adjective 3noun 1forms 3 adjective3 •Of or relating to a hero or heroine; supremely noble.heroic deeds •Courageous; displaying heroism.To stand upon the ramparts and die for our principles is heroic. To sally forth to battle and win for our principles is something more than heroic. — 1928 •Of a size larger than life, but less than colossal. noun1 •A heroic verse. formsheroics · more heroic · most heroic