Definitions
1.nounThe day when God is expected to judge the world; end times.
2.nounJudgement day; the day of the Final Judgment; any day of decisive judgement or final dissolution.
3.adjectiveConcerned with or predicting future universal destruction.
4.adjectiveGiven to or marked by forebodings or predictions of impending calamity.
5.adjectiveCapable of causing widespread or total destruction.