doomsday

noun

dooms·​day ˈdümz-ˌdā 

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

Edwards’s warning stems from a belief that 2028 will be too late for the AI doomsday scenario to play out because of the damage already visible in his analysis. —Nick Lichtenberg, Fortune, 26 Feb. 2026

Thirteen people were killed and nearly 6,000 injured when a doomsday cult, Aum Shinrikyo, sabotaged the Tokyo subway with the nerve gas Sarin in 1995. —Orlando Sentinel, The Orlando Sentinel, 23 Feb. 2026

But the doomsday scenario is the 1994 strike, which began in August of that season and resulted in the cancellation of the remaining regular season and entire postseason. —J.j. Bailey, New York Times, 22 Feb. 2026

Thirteen people were killed and nearly 6,000 injured when a doomsday cult, Aum Shinrikyo, sabotaged the Tokyo subway with the nerve gas Sarin in 1995. —Sun Sentinel Editorial Board, Sun Sentinel, 20 Feb. 2026

Word History

First Known Use

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

Phrases Containing doomsday

• doomsday machine
• from now until doomsday

Rhymes for doomsday

• airway
• allay
• archway
• array
• ashtray
• astray
• aue
• away
• ballet
• belay
• beltway
• beret

Kids Definition

doomsday

noun

dooms·​day ˈdümz-ˌdā 

: judgment day