modified
masculine, virile, strong, brave, courageous, undaunted, fearless, firm, staunch, dignified, noble, honorable, valiant, valorous, high-spirited, plucky, lionhearted, intrepid, gallant, resolute, bold, macho, stouthearted, confident, self-reliant, manful; see also masculine 2.
Antonyms cowardly*, timid, effeminate. See syn. study at male.male.