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Synonyms

cataclysmic

American  
[kat-uh-kliz-mik] / ˌkæt əˈklɪz mɪk /
Or cataclysmal

adjective

  1. of, relating to, or resulting from a cataclysm.

  2. of the nature of, or having the effect of, a cataclysm.

    cataclysmic changes.


Other Word Forms

  • cataclysmically adverb
  • noncataclysmal adjective
  • noncataclysmic adjective

Etymology

Origin of cataclysmic

First recorded in 1850–55; cataclysm + -ic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In its many guises, idolatry has survived, despite regular and often cataclysmic proof of its dangers, for centuries and many people will consider a much-larger-than-life golden statue of a president to be perfectly splendid.

From Los Angeles Times • Apr. 1, 2026

"These extinctions were driven by relatively rapid climate shifts and cataclysmic volcanic eruptions," says Dr. Scofield.

From Science Daily • Mar. 26, 2026

Perhaps he causes such extensive mayhem because he is the unintended side effect of a cataclysmic experiment.

From Salon • Mar. 20, 2026

Xfinity saves Jurassic Park from destruction by simply turning a router back on, preventing a cataclysmic security breakdown.

From Slate • Feb. 8, 2026

Not asking what happened is conceding that what happened is cataclysmic.

From "Burning Blue" by Paul Griffin