1.
Apocalyptic means relating to the total destruction of something, especially of the world.
...the reformer’s ~ warnings that the nation was running out of natural resources.
ADJ: usu ADJ n
2.
Apocalyptic means relating to or involving predictions about future disasters and the destruction of the world.
...a gloomy and ~ vision of a world hastening towards ruin.
ADJ: usu ADJ n