plural catastrophes
Synonyms of catastrophe
1
: a momentous tragic event ranging from extreme misfortune to utter overthrow or ruin
Deforestation and erosion can lead to an ecological catastrophe.
2
: utter failure : fiasco
the party was a catastrophe
3
a
: a violent and sudden change in a feature of the earth
b
: a violent usually destructive natural event (such as a supernova)
4
: the final event of the dramatic action especially of a tragedy

Did you know?

When catastrophe was borrowed from Greek in the 1500s it was a term for tearjerkers: the catastrophe was the conclusion or final event of a usually tragic dramatic work. (Greek katastrophē, which means the same thing, comes from katastrephein, meaning "to overturn.") From there, the word moved on to occupy other territory relating to tragic happenings, utter failures, and the worst sort of natural disasters. Just as disaster can range from a calamitous event to one that is merely unsuccessful, catastrophe can refer to what is truly devastating as well as to what is simply deeply disheartening. In Henry IV, Part 2, Shakespeare opted to steer the word away from disaster entirely and plant it squarely in the world of burlesque: "You scullion! You rampallian! You fustilarian! I'll tickle your catastrophe!" May all our catastrophes be of such a comic variety.

Examples of catastrophe in a Sentence

The oil spill was an environmental catastrophe. Experts fear a humanitarian catastrophe if food isn't delivered to the refugees soon. an area on the brink of catastrophe
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Shaw’s witty drawing-room debates also warn of a society indulging its whims as catastrophe approaches — a question of how to live when the world careens toward darkness. — Theater Critic, Los Angeles Times, 28 Oct. 2026 Florida has spent more than three decades learning how difficult catastrophe insurance can be. — Kevin M. McCarty, Sun Sentinel, 27 Oct. 2026 The film is directed by Alejandro González Iñárritu and also stars Riz Ahmed, John Goodman and Sandra Hüller and follows Digger, whose company causes a potential global catastrophe. — Jazz Tangcay, Variety, 27 Oct. 2026 Its own models going rogue or causing catastrophe The filing says that advanced AI systems pose existential risks particularly if they are misused, weaponized, or allowed to operate with high autonomy. — Beatrice Nolan, Fortune, 26 Oct. 2026 See All Example Sentences for catastrophe

Word History

Etymology

Greek katastrophē, from katastrephein to overturn, from kata- + strephein to turn

First Known Use

1540, in the meaning defined at sense 4

Time Traveler
The first known use of catastrophe was in 1540

Browse Nearby Words

Podcast

Cite this Entry

“Catastrophe.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catastrophe. Accessed 29 Oct. 2026.

Kids Definition

catastrophe

noun
1
: a sudden disaster
2
: complete failure : fiasco

Medical Definition

catastrophe

noun
: death (as from an inexplicable cause) before, during, or after an operation

More from Merriam-Webster on catastrophe

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster