daredevil

A person who engages in very risky behavior, especially one who is motivated by a craving for excitement or attention.

Even as a youngster, Steven was a bit of a daredevil riding up homemade wooden ramps on his BMX.

Recklessly bold; adventurous.

The climactic scene of “Rebel without a Cause” is the group of very daredevil teens playing chicken.

Not only do they glide gracefully with burdens on their heads, they bend to pick money that has been flung at them; dash across roads with cars zooming by and the most daredevil do all this with a child strapped to their back.

To behave in a reckless, adventurous, or physically risky manner.