often attributive
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
The loss sent shockwaves through the fan base, triggering doomsday reactions.
—
Anthony De Leon, Los Angeles Times, 31 Dec. 2024
Now the doomsday weapons had been, if not abolished, at least holstered, and the passage of time could mean progress, rather than a countdown to annihilation.
—Adam Kirsch, The Atlantic, 31 Dec. 2024
This doomsday scenario sounds like science fiction.
—Eli Wizevich, Smithsonian Magazine, 13 Dec. 2024
And there are few signs of it changing at all as the entitlements doomsday clock approaches zero.
—The Editors, National Review, 23 Dec. 2024
See all Example Sentences for doomsday 
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Anthony De Leon, Los Angeles Times, 31 Dec. 2024
Now the doomsday weapons had been, if not abolished, at least holstered, and the passage of time could mean progress, rather than a countdown to annihilation.
—Adam Kirsch, The Atlantic, 31 Dec. 2024
This doomsday scenario sounds like science fiction.
—Eli Wizevich, Smithsonian Magazine, 13 Dec. 2024
And there are few signs of it changing at all as the entitlements doomsday clock approaches zero.
—The Editors, National Review, 23 Dec. 2024
See all Example Sentences for doomsday
Dictionary Entries Near doomsday
Cite this Entry
“Doomsday.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/doomsday. Accessed 22 Jan. 2025.
Copy CitationKids Definition
doomsday
noun
dooms·day
ˈdümz-ˌdā 
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