Synonyms of heroism in English:

heroism


See US English definition of heroism

See UK English definition of heroism

See Spanish definition of heroísmo

noun

1‘many of the women distinguished themselves by great acts of heroism’

SYNONYMS
bravery, braveness, courage, courageousness, valour, valiance, intrepidity, intrepidness, boldness, daring, audacity, audaciousness, fearlessness, doughtiness, dauntlessness, pluck, indomitability, stout-heartedness, lionheartedness
backbone, spine, spirit, fortitude, mettle, gallantry, chivalry
informal guts, grit, spunk, gutsiness
British informal bottle, ballsiness
North American informal moxie, cojones, sand
vulgar slang balls
ANTONYMS

cowardliness, fearfulness