doomsday device

noun

A hypothetical weapon (often a bomb) programmed to automatically be used in response to certain attacks, usually with very dire consequences (such as the annihilation of the world).

“Near-synonyms: doomsday bomb, Dead Hand”

Meanings

doomsday device1

noundoomsday device (plural doomsday devices)

plural doomsday devices · alternative Doomsday Device

  1. A hypothetical weapon (often a bomb) programmed to automatically be used in response to certain attacks, usually with very dire consequences (such as the annihilation of the world).

    Near-synonyms: doomsday bomb, Dead Hand

    2 more examples

    For more than a year, ominous rumors had been privately circulating among high-level Western leaders that the Soviet Union had been at work on what was darkly hinted to be the ultimate weapon: a doomsday device.

    1964, Stanley Kubrick, Terry Southern, Peter George, Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb, spoken by Narrator

    Of course, Henry M. Paulson Jr., the Treasury secretary, is calling for merging the S.E.C. with the easygoing Commodity Futures Trading Commission, in the financial equivalent of setting off a Doomsday Device.

    2008 April 27, Ben Stein, “Wall Street, Run Amok”, in The New York Times, →ISSN

    Synonyms: doomsday weapon, doomsday bomb, Dead Hand

Doomsday Device2

nounDoomsday Device (plural Doomsday Devices)

plural Doomsday Devices

  1. alternativeAlternative spelling of doomsday device.

Synonyms & antonyms

nounA hypothetical weapon (often a bomb) programmed to automatically be used in response to certain attacks, usually with very dire consequences (such as the annihilation of the world).

Origin

Coined as Doomsday Machine by military strategist Herman Kahn.

Full word history & related roots →
Cite this entry
APA

doomsday device. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/doomsday%20device

MLA

“doomsday device.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/doomsday%20device. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “doomsday device,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/doomsday%20device.

Source: doomsday device on Wiktionary, CC BY-SA 4.0.