adventuresome,
adventurous willing to undertake or seeking out new and daring enterprises; "adventurous pioneers"; "the risks and gains of an adventuresome economy"
courageous,
brave possessing or displaying courage; able to face and deal with danger or fear without flinching; "Familiarity with danger makes a brave man braver but less daring"- Herman Melville; "a frank courageous heart...triumphed over pain"- William Wordsworth; "set a courageous example by leading them safely into and out of enemy-held territory"
forward at or near or directed toward the front; "the forward section of the aircraft"; "a forward plunge down the stairs"; "forward motion"
fearless,
unafraid oblivious of dangers or perils or calmly resolute in facing them
dauntless,
intrepid,
unfearing,
fearless,
audacious,
brave,
hardy disposed to venture or take risks; "audacious visions of the total conquest of space"; "an audacious interpretation of two Jacobean dramas"; "the most daring of contemporary fiction writers"; "a venturesome investor"; "a venturous spirit"
daredevil,
temerarious presumptuously daring; "a daredevil test pilot having the right stuff"
foolhardy,
rash,
reckless,
heady marked by defiant disregard for danger or consequences; "foolhardy enough to try to seize the gun from the hijacker"; "became the fiercest and most reckless of partisans"-Macaulay; "a reckless driver"; "a rash attempt to climb Mount Everest"
heroical,
heroic having or displaying qualities appropriate for heroes; "the heroic attack on the beaches of Normandy"; "heroic explorers"
nervy showing or requiring courage and contempt of danger; "the nervy feats of mountaineers"
overreaching,
vaulting revealing excessive self-confidence; reaching for the heights; "vaulting ambition"
bold -
clear and distinct; "bold handwriting"; "a figure carved in bold relief"; "a bold design"
conspicuous obvious to the eye or mind; "a tower conspicuous at a great distance"; "wore conspicuous neckties"; "made herself conspicuous by her exhibitionistic preening"
bold -
very steep; having a prominent and almost vertical front; "a bluff headland"; "where the bold chalk cliffs of England rise"; "a sheer descent of rock"
