The day when God is expected to judge the world; the end times. / Judgement day; the day of the Final Judgment; any day of decisive judgement or final dissolution.

Concerned with or predicting future universal destruction. / Given to or marked by forebodings or predictions of impending calamity. / Capable of causing widespread or total destruction.

plural of doomsday

(cosmology, astronomy) An occurrence which causes the end of the universe or which destroys the planet earth; a global cataclysm.

plural of doomsday device

plural of Doomsday Device

Synonym of doomsday device

Uncommon form of Domesday Book.

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).

Alternative spelling of doomsday device