Synonyms and Antonyms of dastardly
- his dastardly conduct in a critical moment haunted him for the rest of his life
chicken, chicken-livered, chickenhearted, cowardly, craven, gutless, lily-livered, milk-livered [archaic], poltroon, pusillanimous, recreant, spineless, unheroic, yellow
brave, courageous, daring, dauntless, doughty, fearless, gallant, greathearted, gutsy, hardy, heroic (also heroical), intrepid, lionhearted, stalwart, stout, stouthearted, valiant, valorous