{i} one who believes in the coming of the Millennium, person who believes in the 2nd coming of Christ to rule on earth a thousand years (Christianity); millenarian
One who believes in the second coming of Christ to reign on earth a thousand years; a millenarian
chiliast
Hyphenation
chi·li·ast
Pronunciation
Etymology
() Adaptation of the Latin word "chiliasta", first used in the 17th century.