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

Recent Examples on the Web

The episode marked the latest instance of Congress trying and failing to advance AI legislation amid a growing debate over whether, if at all, to regulate the technology that industry leaders warn may pose doomsday threats to humanity. — Ramsey Touchberry, The Washington Examiner, 16 Sep. 2026

The list of potential risks and scenarios has garnered widespread attention, leaving everyday people to assess the doomsday predictions. — Max Zahn, ABC News, 16 Sep. 2026

But some are skeptical of the current doomsday outlook and think the reality is more nuanced. — Hadas Gold, CNN Money, 16 Sep. 2026

Some investors wrote off the growing chorus of concern around AI, saying the doomsday talk is a political tactic to encourage government regulation. — Alex Harring, CNBC, 15 Sep. 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
• assez
• astray
• aue
• away
• ballet
• belay
• beltway

Kids Definition

doomsday

noun

dooms·​day ˈdümz-ˌdā 

: judgment day