daredevil

noun

spectators watched in horror as the nineteen-year-old daredevil smashed into the ground:

madcap, hothead, adventurer, exhibitionist, swashbuckler;

stuntman;

British tearaway;

informal show-off, showboat;

dated desperado.

▷antonyms coward.

adjective

a daredevil skydiver:

daring, bold, adventurous, madcap, hot-headed, audacious, courageous, brave, intrepid, fearless, death-or-glory, undaunted, dauntless, heedless;

reckless, rash, hasty, impulsive, precipitous, impetuous, wild, desperate, foolhardy, incautious, imprudent, ill-advised, hare-brained;

British tearaway;

informal harum-scarum, bull-in-a-china-shop.

▷antonyms cowardly; cautious.

daredevil Oxford Dictionary of English