a general breakup or dispersion; sudden downfall or rout

The revolution ended in a debacle.

a complete collapse or failure.

a breaking up of ice in a river. Compare embacle .

a violent rush of waters or ice.

noun

boon , miracle , wonder

noun

beating , blue ruin , breakdown , collapse , crack-up , crash , defeasance , defeat , devastation , disaster , dissolution , downfall , drubbing , failure , fiasco , havoc , licking , overthrow , reversal , rout , ruin , ruination , shellacking , smash , smashup , trouncing , vanquishment , washout , wreck , cataclysm , catastrophe , flood