fearless (adj.)

• assured
• audacious
• aweless
• bold
• brave
• chivalrous
• confident
• courageous
• daring
• dauntless
• gallant
• game
• heroic
• intrepid
• lionhearted
• plucky
• sanguine
• sure
• unafraid
• unapprehensive
• unfearing
• unfrightened
• valiant
• valorous
• venturesome