apocalyptic
adjective
[ əpɒkəˈlɪptɪk ]
• describing or prophesying the complete destruction of the world.
• "the apocalyptic visions of ecologists"
Origin:
early 17th century (as a noun denoting the writer of the Apocalypse, St John): from Greek apokaluptikos, from apokaluptein ‘uncover’ (see apocalypse).