(n.) Insignificance.

a little thing a nobody a nothing cipher common man dummy figurehead hardly anything inessential jackstraw lightweight little fellow little guy man of straw marginal matter matter of indifference mediocrity mere nothing minor matter naught nebbish nihility no great matter nobody nobody one knows nonentity nothing nothing in particular nothing to signify nullity obscurity paltry affair peu de chose pip-squeak punk rien du tout runt scarcely anything scrub shrimp small fry small potato small potatoes squirt squit technicality thing of naught whiffet whippersnapper zero zilch