adventurer
adventuresome
adventuress
adventurous
audacious
bold
brave
brazenface
courageous
daring
dashing
death-defying
devil
devil-may-care
exhibitionist
fearless
fire-eater
fire-eating
foolhardy
forward
gallant
harebrained
harum-scarum
hellcat
hotspur
impetuous
imprudent
impulsive
incautious
intrepid
madbrain
madbrained
madcap
presumptuous
rantipole
rash
reckless
show-off
showman
soldier of fortune
stunt man
temerarious
venturesome
venturous
wild
wild man
wild-ass