disaster
Americannoun
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a calamitous event, especially one occurring suddenly and causing great loss of life, damage, or hardship, as a flood, airplane crash, or business failure.
- Synonyms:
- affliction, adversity, reverse, blow, accident, mishap, misadventure, misfortune, mischance
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Obsolete. an unfavorable aspect of a star or planet.
noun
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an occurrence that causes great distress or destruction
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a thing, project, etc, that fails or has been ruined
Related Words
Disaster, calamity, catastrophe, cataclysm refer to adverse happenings often occurring suddenly and unexpectedly. A disaster may be caused by carelessness, negligence, bad judgment, or the like, or by natural forces, as a hurricane or flood: a railroad disaster. Calamity suggests great affliction, either personal or general; the emphasis is on the grief or sorrow caused: the calamity of losing a child. Catastrophe refers especially to the tragic outcome of a personal or public situation; the emphasis is on the destruction or irreplaceable loss: the catastrophe of a defeat in battle. Cataclysm, physically an earth-shaking change, refers to a personal or public upheaval of unparalleled violence: a cataclysm that turned his life in a new direction.
Other Word Forms
- disastrous adjective
- predisaster noun
Etymology
Origin of disaster
First recorded in 1585–95; from Middle French desastre, from Italian disastro, from dis- dis- 1 + astro “star” (from Latin astrum, from Greek ástron )
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.
But where the scoreboard showed a disaster, Hurley saw the possibility for something remarkable.
From The Wall Street Journal • Mar. 30, 2026
One thing they may not fully understand is how many avenues for financial disaster are out there for young people:
From MarketWatch • Mar. 30, 2026
“He’d probably been the first Black person to do X, Y or Z,” said Holder, whose planned mission to space was ultimately canceled after the Challenger disaster in 1986.
From Los Angeles Times • Mar. 30, 2026
In further recordings, Jeffries says he is "hoping for a good outcome", describing being found fit as a "disaster", and tells a doctor: "you better find me incompetent", Central Islip court heard.
From BBC • Mar. 28, 2026
“This is the worst disaster ever to hit America.”
From "I Survived Hurricane Katrina, 2005" by Lauren Tarshis
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
