doomsday

/หˆduหmz.deษช/
noun
  1. 1

    The day when God is expected to judge the world; end times.

  2. 2

    Judgement day; the day of the Final Judgment; any day of decisive judgement or final dissolution.

adjective
  1. 1

    Concerned with or predicting future universal destruction.

  2. 2

    Given to or marked by forebodings or predictions of impending calamity.

  3. 3

    Capable of causing widespread or total destruction.

Source: https://en.wiktionary.org/wiki/doomsday