noun, often attributive
dooms·​day | \ ˈdümz-ˌdā How to pronounce doomsday (audio) \

Definition of doomsday

1 : a day of final judgment
2 : a time of catastrophic destruction and death

Examples of doomsday in a Sentence

a warning that doomsday is near The book explores a doomsday scenario in which an asteroid hits the Earth.

Recent Examples on the Web

Media coverage and recent books underscore the doomsday scenario, from David Runciman’s How Democracy Ends to former Secretary of State Madeleine Albright’s Fascism: A Warning. James Stavridis, Time, "Democracy Isn't Perfect, But It Will Still Prevail," 12 July 2018 The story begins with Maurice Strong, a Canadian oil tycoon who believed the Club of Rome’s doomsday forecast in 1972 that a rising global population would soon exhaust the planet’s resources. George Melloan, WSJ, "The Yellow Jackets Are Right About Green Policies," 16 Dec. 2018 Katie Moussouris, founder and CEO of Luta Security, says an attacker could use this kind of malicious implant to bypass all software protections, a doomsday scenario for defenders. Ashley Carman, The Verge, "Chinese spy chips would be a ‘god-mode’ hack, experts say," 4 Oct. 2018 Even though the doomsday scenarios appear to have been averted, the past week’s rhetorical clash over Syria has deepened an East-West confrontation that continues to intensify. Anton Troianovski, Washington Post, "Russia responds to airstrike with harsh words but no fire," 14 Apr. 2018 This year’s test was the toughest to date, laying out a doomsday scenario of double-digit unemployment, cratering home and stock prices, and soaring losses on credit cards and car loans. Lalita Clozel, WSJ, "Goldman Sachs, Morgan Stanley Dinged in Fed Stress Tests," 28 June 2018 In this doomsday scenario even when planets switched to renewable fuels to save themselves from extinction, the damage done was sometimes so bad it could not be reversed. Fox News, "The three possible ways human civilization could end revealed," 1 June 2018 While ballots are still being counted, such doomsday predictions did not appear to come to pass. Adam Shaw, Fox News, "Dems’ path to House takeover narrows: Party trails in Calif. races, as NY seat comes into play," 7 June 2018 The premise is logical and chilling, seeming only a few short steps away from today’s reality, her doomsday scenario requiring only the slightest suspension of disbelief. Michael Berry, San Francisco Chronicle, "Science fiction and fantasy books: ‘Belly Up,’ ‘What Should Be Wild,’ ‘84K’," 7 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'doomsday.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of doomsday

before the 12th century, in the meaning defined at sense 1

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Statistics for doomsday

Last Updated

7 Feb 2019

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Time Traveler for doomsday

The first known use of doomsday was before the 12th century

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More Definitions for doomsday



English Language Learners Definition of doomsday

: the day the world ends or is destroyed


dooms·​day | \ ˈdümz-ˌdā How to pronounce doomsday (audio) \

Kids Definition of doomsday

: the day the world ends or is destroyed

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More from Merriam-Webster on doomsday

Rhyming Dictionary: Words that rhyme with doomsday

Thesaurus: All synonyms and antonyms for doomsday Encyclopedia article about doomsday

Comments on doomsday

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a flaw that causes the downfall of a hero

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