doomsday

noun

1. (countable, uncountable)The day when God is expected to judge the world; the end times.
2. (Judaism, capitalized, countable, sometimes, uncountable)Judgement day; the day of the Final Judgment; any day of decisive judgement or final dissolution.
3. (countable, uncountable)Any day of great death and destruction; end of the world; an apocalypse.
4. (countable, uncountable)Any of the memorable dates used in the doomsday rule for computing weekdays from dates.

adj

1. (not-comparable)Concerned with or predicting future universal destruction.
2. (not-comparable)Given to or marked by forebodings or predictions of impending calamity.

   “The Sages chose to end the haftarah with this message of hope, in contrast to the episode's last verse with its doomsday warning that "if you persist in your wrongdoing, both you and your king shall be swept away."”

3. (not-comparable)Capable of causing widespread or total destruction.