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

Sarin attack Among those executed in 2018 included guru Shoko Asahara and 12 former members of the Aum Shinrikyo doomsday cult, which orchestrated the 1995 sarin gas attacks on Tokyo's subway system that killed 14 people. — CBS News, 21 Aug. 2026

Amit Zavery, ServiceNow’s chief product officer, doesn’t buy the SaaS doomsday premise. — Lily Mae Lazarus, Fortune, 19 Aug. 2026

In their terrifying report, these researchers spell out the doomsday denouement of most of the planet’s peoples following a nuclear conflagration. — Kevin Holden Platt, Forbes.com, 16 Aug. 2026

Things get increasingly bleak, as the family dog’s heart medicine runs out and Jason has to put him out of his misery, and then — in doomsday prepper mode — carves up the body and puts it in the freezer just in case food gets dire. — William Earl, Variety, 8 Aug. 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