1. describing or prophesying the complete destruction of the world: "the apocalyptic visions of ecologists"
▪ momentous or catastrophic: "the struggle between the two countries is assuming apocalyptic proportions"
▪ of or resembling the biblical Apocalypse:"apocalyptic imagery"
Word Originearly 17th century (as a noun denoting the writer of the Apocalypse, St John): from Greek apokaluptikos, from apokaluptein ‘uncover’ (see apocalypse).