1. gallantry Bravery, courage, heroism, and intrepidity may be silent, spiritual, or passive; they may be exhibited by a martyr at the stake. Prowess and valor imply both daring and doing; we do not s Synonyms: prowess, bravery, gallantry, intrepidity, courage, heroism, valor Antonyms: cowardice, cowardliness, effeminacy, fear, pusillanimity, timidity