fearless

Synonyms: assured aweless bodacious bold brassy cheeky chesty cocky confident cool hand courageous crack daring dashing dauntless doughty flip fresh gallant game gritty gutsy heroic icy indomitable intrepid lionhearted nervy plucky salty sanguine sassy smart spunky sure temerarious unabashed undaunted unflinching valiant valorous wise

Antonyms: afraid apprehensive fearful timid