stalwart

1 feeling or displaying no fear by temperament the stalwart soldiers in the army of Alexander the Great, who willingly followed him to the ends of the known world Synonyms bold, courageous, dauntless, doughty, fearless, gallant, greathearted, gutsy, gutty, heroic (also heroical), intrepid, lionhearted, manful, brave, stout, stouthearted, undauntable, 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

2 having muscles capable of exerting great physical force a stalwart yet lithe athlete Synonyms brawny, muscular, rugged, sinewy, strong, stoutRelated Words forceful, forcible, mighty, potent, powerful, puissant; able-bodied, athletic, fit, trim; beefy, burly, husky, strapping; masculine, virile; hard, inured, strengthened, sturdy, tough, toughened; energetic, energized, invigorated, lusty, red-blooded, robust, vigorous, vitalized; hale, healthy, hearty, soundNear Antonyms challenged, disabled, incapacitated, paralyzed; impotent, powerless; puny, slight, small, unathletic, unfit, unhealthyAntonyms delicate, feeble, frail, weak, weakling, wimpy

3 marked by the ability to withstand stress without structural damage or distortion the stalwart walls of the castle Synonyms bombproof, fast, firm, sound, stable, strong, sturdyRelated Words dependable, durable, reliable; infrangible, irrefragable, unbreakable; beefy, solid; cohesive, toughNear Antonyms infirm, insecure, weak; shaky, tottering, tottery, unbalanced, wobbly (also wabbly); unsubstantialAntonyms rickety, unsound, unstable, unsteady