Synonyms to flash in the pan

abortion, abortive attempt, also-ran, bankrupt, best seller, big hit, blank cartridge, bogy, brilliant success, bubble, bugaboo, bugbear, castrato, cipher, cry of wolf, dud, dummy, ephemera, ephemeral, ephemerid, ephemerides, ephemeris, eunuch, fad, failure, false alarm, flop, gas, gasser, gelding, great success, hit, hollow man, impotent, incompetent, invalid, jackstraw, killing, lay figure, loser, man of straw, mayfly, merry chase, meteoric success, miscarriage, miscarrying, misfire, momentary success, nebbish, nobody, nonentity, nothing, nullity, puppet, pushover, resounding triumph, riot, roaring success, sensation, smash, smash hit, smoke, snows of yesteryear, thing of naught, trifle, triumph, vain attempt, washout, weakling, wet squib, wild-goose chase, wow, zero