A sudden and violent collapse.

synoniem: debacle.

Roget 732: failure; nonsuccess^†, nonfulfillment; dead failure, successlessness^†; abortion, miscarriage; brutum fulmen etc. 158 [Lat.]; labor in vain etc. (inutility) 645; no go; inefficacy^†; inefficaciousness etc. adj.; vain attempt, ineffectual attempt, abortive attempt, abortive efforts; flash in the pan, lame and impotent conclusion" [Othello]; frustration; slip 'twixt cup and lip etc. (disappointment) 509.    blunder etc. (mistake) 495; fault, omission, miss, oversight, slip, trip, stumble, claudication^†, footfall; false step, wrong step; faux pas [Fr.], titubation^†, b_evue [Fr.], faute [Fr.], lurch; botchery etc. (want of skill) 699^†; scrape, mess, fiasco, breakdown; flunk [U.S.].    mishap etc. (misfortune) 735; split, collapse, smash, blow, explosion.    repulse, rebuff, defeat, rout, overthrow, discomfiture; beating, drubbing; quietus, nonsuit^†, subjugation; checkmate, stalemate, fool's mate.    fall, downfall, ruin, perdition; wreck etc. (destruction) 162; deathblow; bankruptcy etc. (nonpayment) 808.    losing game, affaire flamb_ee.    victim; bankrupt; flunker^†, flunky [U.S.].    ... meer laten zien