[ doomz-dey ]
/ ˈdumzˌdeɪ /


the day of the Last Judgment, at the end of the world.
any day of judgment or sentence.
nuclear destruction of the world.


given to or marked by forebodings or predictions of impending calamity; especially concerned with or predicting future universal destruction: the doomsday issue of all-out nuclear war.
capable of causing widespread or total destruction: doomsday weapons.

Origin of doomsday

before 1000; Middle English domes dai, Old English dōmesdæg Judgment Day. See doom, day Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for doomsday

British Dictionary definitions for doomsday



/ (ˈduːmzˌdeɪ) /


(sometimes capital) the day on which the Last Judgment will occur
any day of reckoning
(modifier) characterized by predictions of disasterdoomsday scenario

Word Origin for doomsday

Old English dōmes dæg Judgment Day; related to Old Norse domsdagr
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012