courageous

Synonyms: adventuresome adventurous assured audacious cool daredevil daring dauntless doughty fearless fiery fire-eating gallant game gritty gutsy hardy heroic high-spirited impavid indomitable intrepid lionhearted martial nervy plucky red-blooded resolute spartan stalwart stand tall stouthearted strong tenacious tough trojan unafraid undaunted valiant valorous venturesome venturous

Antonyms: cowardly fainthearted fearful fearing meek shy timid weak