Synonyms and related words :
a nobody, a nothing, breath, breath of air, capful of wind, cipher, common man, dummy, figurehead, flatus, insignificancy, jackstraw, lightweight, little fellow, little guy, man of straw, mediocrity, nebbish, nobody, nobody one knows, nonentity, nothing, nullity, obscurity, pip-squeak, puff, puff of air, puff of wind, punk, runt, scrub, shrimp, small fry, small potato, small potatoes, squirt, squit, stir of air, waft, whiff, whippersnapper, zero, zilch