(n.) A breaking or bursting; a total failure; a sudden collapse or defeat; as, a political debacle\.

Waterloo beating bloodless revolution bouleversement breakdown breaking up breakup cascade cataclysm cataract catastrophe cave cave-in chute clean slate clean sweep collapse comedown computer revolution conquering conquest convulsion counterrevolution crack-up crash deathblow declension declination defeasance defeat defluxion descending descension descent destruction disaster down downbend downcome downcurve downfall downflow downgrade downpour downrush downtrend downturn downward trend drop dropping drubbing failure fall falling gravitation hiding inclination lambasting lathering licking mastery overcoming overthrow overturn palace revolution plummeting pounce quietus radical change rapids revolt revolution revolutionary war revulsion rout ruin shellacking shipwreck smash smashup spasm stoop striking alteration subdual subduing subjugation subversion sweeping change swoop tabula rasa technological revolution thrashing total change total loss transilience trimming trouncing undoing upset vanquishment violent change washout waterfall whipping wrack wreck