catastrophe

1 a sudden violent event that brings about great loss or destruction more than one natural catastrophe has threatened to destroy their farm over the years Synonyms apocalypse, calamity, cataclysm, disaster, debacle (also débâcle), tragedyRelated Words bloodbath, collapse, crash, meltdown; Armageddon, doomsday, end-time; convulsion, paroxysm, upheaval; accident, casualty, fatality; misadventure, mischance, misfortune, mishap; blast, blow, double whammy, one-two (or one-two punch)Near Antonyms godsend, manna, windfall

2 something that has failed the movie was a catastrophe, nearly bankrupting the studio that produced it Synonyms bomb, bummer, bust, failure, clinker, clunker, debacle (also débâcle), disaster, dud, fiasco, fizzle, flop, frost, lemon, loser, miss, shipwreck, turkey, washoutRelated Words also-ran, disappointment, dog, has-been, near miss; botch, hash, mess, muddle, shambles; nonevent; nonstarterNear Antonyms corker, crackerjack (also crackajack), dandy, jim-dandy, phenomenonAntonyms blockbuster, hit, smash, success, winner