The Collaborative International Dictionary
Millennialist \Mil*len"ni*al*ist\, n. One who believes that Christ will reign personally on earth a thousand years; a Chiliast; also, a believer in the universal prevalence of Christianity for a long period.
Wiktionary
n. A believer in millennialism.
Usage examples of "millennialist".
The society there, and its beliefs, always have been founded on colossal prehuman ruins, and evidently has often brought forth millennialist prophets.
In that time, he had confronted a wide range of threats, from millennialist martyrs and Third-World gunrunners to cuckolded husbands and corporate hackers.
The millennialists, taking their lead from thinkers like Carl Sagan—not to mention Gene Roddenberry—believed that no star-spanning culture could possibly be hostile to a more primitive species like humanity, and the Gaijin must therefore be on their way to educate us or uplift us or save us from ourselves.
The more intellectual millennialists had at least produced some useful, if slanted, material: careful studies of parallels with intercultural contact in Earth’s past, ranging from the dreadful fall-out of Western colonialism through to the essentially benevolent impact of the transmission of learning from Arabian and ancient Greek cultures to the medieval West.
Roslin was the home of the ancient and extraordinary Rosslyn Chapel, which in recent years had become the target of a range of millennialist nutters.