adventuresome
adventurous
aggressive
aleatory
ambitious
audacious
bold
brave
chancy
courageous
daredevil
daring
determined
dicey
doughty
driving
dynamic
enterprising
experimental
fearless
foolhardy
forceful
full of risk
game
go-ahead
hazardous
hustling
intrepid
overbold
plucky
presumptuous
pushful
pushing
pushy
rash
reckless
resolute
riskful
risky
speculative
spirited
sporting
stalwart
stout
chivalrous
clear-sighted
dauntless
dexterous
excitable
hardy
headstrong
hot-blooded
pugnacious
resourceful
stout-hearted
unconventional
untiring
unwary
valorous
cautious
timid