undauntable

feeling or displaying no fear by temperament <the undauntable adventurers who crossed the trackless wilderness in search of El Dorado> Synonyms bold, courageous, dauntless, doughty, fearless, gallant, greathearted, gutsy, gutty, heroic (also heroical), intrepid, lionhearted, manful, stalwart, stout, stouthearted, brave, undaunted, valiant, valorousRelated Words determined, firm, game, gamy (or gamey), gritty, plucky, resolute, Spartan, undeterred, undismayed, unflinching, unswerving; mettlesome, spirited, spunky; adventuresome, adventurous, audacious, daring, dashing, hardy, venturesome, venturous; crazy, foolish, half-witted, insane, lunatic, mad, nutty; brash, brazen, daredevil, foolhardy, heedless, hotheaded, impetuous, imprudent, impulsive, incautious, madcap, overbold, overconfident, rash, reckless, thoughtless, wild; hasty, headlong, precipitate; comforted, emboldened, encouraged, heartened, reassured, unafraidNear Antonyms diffident, mousy (or mousey), scary, shy, skittish, timid; anxious, apprehensive, nervous; careful, cautious, heedful, prudent, unadventurous; afraid, agitated, disconcerted, disquieted, disturbed, frightened, horrified, panicked, panic-stricken, perturbed, scared, shocked, spooked, startled, terrified, terrorized, unnerved, upset; appalled, concerned, dismayed, worried; unmanly, weak, wimpyAntonyms chicken, chickenhearted, chicken-livered, coward, cowardly, craven, dastardly, fainthearted, fearful, gutless, lily-livered, milk-livered [archaic], nerveless, poltroon, poor-spirited, pusillanimous, spineless, spiritless, timorous, uncourageous, ungallant, unheroic, weakhearted, yellow