1. unimportance, inconsequence, inconsequentiality, immateriality, irrelevance; paltriness, pettiness, meanness, smallness; triviality, worth-lessness, emptiness, nothingness, nullity; matter of indifference, trifling matter, no great matter, mere nothing; nothing worth mentioning, nothing worth speaking of, nothing to speak of, nothing to boast of, nothing to write home about, Inf. no great shakes, nothing particular.
2. cipher, nonentity, Inf. picayune, Inf. small potatoes, small fry, Chiefly Brit. Sl. small beer, insignificancy; flash in the pan, nine days' wonder; trumpery, trifle, bagatelle, froth, feather, farthing; drop in the bucket.

A Note on the Style of the synonym finder. 2014.