debacle

fiasko

romahdus

jäidenlähdön aiheuttama tulva An event or enterprise that ends suddenly and disastrously, often with humiliating consequences.
1952, w:Maimonides Maimonides, translated by Boaz Cohen, w:Epistle to Yemen|Epistle to Yemen s:Epistle to Yemen/XV|page 5,

The event proved to be a great debacle for the partisans of this prognosticator.

The result is a military approach which maximizes political tensions with Russia (..) and lays the ground for a military debacle.

The Falklands-Malvinas débâcle provided the opportunity to restructure the military High Command; Alfonsín removed anti-democratic senior officers and replaced them with more co-operative ones.

The BP Prudhoe Bay debacle the w:Prudhoe Bay oil spill|Prudhoe Bay oil spill thus provides but the latest in a long line of reasons why leasing this region of the NPR-A is a bad idea.

(..) so that in extreme cases the latter may even be dammed up for a time, and a debacle be the consequence, when the main river overcomes the resistance opposed to it, (..)

For several months after the debacle just described, the river Dranse, having no settled channel, shifted its position continually (..)

When this débâcle commences (..), the masses of ice, drifting with the current and unable to pass, are hurled upon those already soldered together; thus an enormous barrier is formed (..)