Noun
An extensive overflow or sweeping flood of water; a deluge.
Any violent catastrophe, involving sudden and extensive changes of the earth's surface.
Source: Webster's dictionaryYou know what a miracle is. Not what Bakunin said. But another world's intrusion into this one. Most of the time we coexist peacefully, but when we do touch there's cataclysm. Thomas Pynchon
Send me one hundred francs on our future deals, otherwise I will disappear in a cataclysm. Camille Claudel
...The girl raised her eyes to see who was passing by the window, and that casual glance was the beginning of a cataclysm of love that still had not ended half a century later. Gabriel García Márquez
A war, with its attendant human suffering, must, when that evil is unavoidable, be made to fragment more than buildings: It must shatter the foundations of thought and re-create. Only in this way does every individual share in the cataclysm and understand the purpose of sacrifice. Wole Soyinka
It must be, I thought, one of the race's most persistent and comforting hallucinations to trust that "it can't happen here" -- that one's own time and place is beyond cataclysm. John Wyndham
The world has conducted a massive macro-economic experiment since the cataclysm of 2008. In Europe, the fans of austerity have had their chance, and the results have been a disaster. Eliot Spitzer