GUTLESS Meaning of GUTLESS in English adjective Synonyms: cowardly , ||chicken, coward, craven, lily-livered, poltroonish, poor-spirited, pusillanimous, spunkless, unmanly Antonyms: ||gutsy Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003