dauntless

a.

1.

Incapable of being daunted; undaunted; bold; fearless; intrepid. Dauntless he rose, and to the fight returned. - Dryden.

Adj.

1.

dauntless - invulnerable to fear or intimidation; "audacious explorers"; "fearless reporters and photographers"; "intrepid pioneers" Synonyms: audacious, intrepid, unfearing, brave, fearless

audacious, aweless, confident, daring, dreadless, gallant, game, gritty, gutsy, gutty, heroic, indomitable, invincible, lionhearted, mettlesome, plucky, spunky, stalwart, unafraid, unapprehensive, unbashful, unconquerable, undaunted, undiffident, unfearful, unfearing, unflinching, unfrightened, unscared, unshy, unterrified, untimid, untimorous, valiant, valorous, venturesome