cataclysmic

comparative more cataclysmic · superlative most cataclysmic

1. Of or pertaining to a cataclysm; causing great destruction or upheaval; catastrophic.

   It is believed that a cataclysmic impact caused the extinction of the dinosaurs.

   2 more examples

   That’s why to be rejected in love was so cataclysmic: one had been judged and found wanting.

   2005, Edmund White, My Women, archived from the original on 04 Dec 2012

   Still, the atomic bombing in Nagasaki was cataclysmic. Of the 263,000 people estimated to be in the city at the time, around 39,000 were killed instantly. Approximately 25 percent of the homes in Nagasaki were destroyed.

   2026 September 7, Abby Norman, Cara Johnson, “How The Atomic Bombing Of Nagasaki Brought World War 2 To A Violent End”, in All That's Interesting, archived from the original on 09 Sep 2026