Synonyms and related words :
a nobody, a nothing, cipher, common man, dud, dummy, figurehead, hollow man, insignificancy, jackstraw, lay figure, lightweight, little fellow, little guy, man of straw, mediocrity, nary one, nebbish, never a one, no man, no one, nobody on earth, nobody one knows, nobody present, nonentity, not a soul, not one, nothing, nullity, obscurity, pip-squeak, punk, puppet, pushover, runt, scrub, shrimp, small fry, small potato, small potatoes, squirt, squit, thing of naught, trifle, unknown, whiffet, whippersnapper, zero, zilch