Apocalyptic - concerning, or having to do with an apocalypse.

Apocalypse (a-paw'-kuh-lips) (from the Greek: Apokálypsis; disclosure:--appearing, coming, manifestation, revelation, a "lifting of the veil"; also from Apokálypto; to reveal or "to take off the cover") is a term applied to the disclosure of something hidden. Today the term is often used to refer to the end of the world, which may be a shortening of the phrase apokalupsis eschaton which literally means "revelation at the end of the æon, or age".

Uses in scripture: Luk 2:32; Ro 2:5, 8:19, 16:25; 1Cor 1:7, 14:6, 14:26; 2Cor 12:1, 7; Gal 1:12, 2:2; Eph 1:17, 3:3; 2Th 1:7; 1Pe 1:7, 13, 4:13; Rev 1:1

Eschatology (es'-kuh-tawl'-uh-jee) noun - (from the Greek - Eschatos - meaning "last" and -logy meaning "the study of")
1. The branch of theology that is concerned with the end of the world or of humankind.
2. A belief or a doctrine concerning the ultimate or final things, such as death, the destiny of humanity, the Second Coming, or the Last Judgment.
Eschatological, adj.
Eschatologically, adv.
Eschatologist, noun
Similarly, The term
Eschaton means the end of everything, the final destiny of the world, as studied in the subject of eschatology. Or, the day at the end of time following Armageddon when God will decree the fates of all individual humans according to the good and evil of their earthly lives.

Uses in scripture: Mt 5:26, 12:45, 19:30, 20:8, 12, 14, 16, 27:64; Mr 9:35, 12:6; Jn 6:39, 40, 44, 54, 7:37, 11:24, 12:48; Ac 1:8, 2:17, 13:47; 1Co 4:9, 15:8, 15:26, 45, 52; 2Ti 3:1; Heb 1:2; Jas 5:3; 1Pe 1:5, 20; 2Pe 2:20, 3:3; 1Jo 2:18; Jude 1:18; Re 1:17, 2:8, 19, 15:1, 21:9, 22:13

Millenial - coming soon
A-millenial
Pre-milleniel
Post-Millenial

Preterism - coming soon