daredevil
dare-dev-il
adjective
Involving or characteristic of extreme risk-taking and bravery.
"It was a truly daredevil motorcycle stunt."
noun
A person who enjoys performing dangerous or risky actions for excitement.
"The old daredevil still loved extreme sports."
Thesaurus
Synonyms: harum-scarum, swashbuckler, lunatic, hothead, madcap, bold, temerarious