cataclysmic

or cat·a·clys·mal

[ kat-uh-kliz-mik ]
/ ˌkæt əˈklɪz mɪk /

adjective

of, relating to, or resulting from a cataclysm.
of the nature of, or having the effect of, a cataclysm: cataclysmic changes.

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Origin of cataclysmic

First recorded in 1850–55; cataclysm + -ic

OTHER WORDS FROM cataclysmic

cat·a·clys·mi·cal·ly, adverbnon·cat·a·clys·mal, adjectivenon·cat·a·clys·mic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020