Synonyms and related words :
baby, big baby, chicken, chicken liver, coward, crybaby, doormat, dull tool, fence-sitter, fraid-cat, fraidy-cat, funk, funker, gutless wonder, invertebrate, jellyfish, lightweight, lily liver, meek soul, milksop, mollycoddle, mouse, mugwump, namby-pamby, nebbish, nonentity, pansy, pantywaist, pushover, sad sack, scaredy-cat, shilly-shally, sissy, softling, softy, sop, waverer, weak sister, weakling, white feather, white liver, wobbler