Home › Words › A › adventismadventismadventism means the Adventist Christian movement founded by William Miller in 19th-century United States.Among words judged in Lexicurio's Arena, adventism ranks #10,511 of 42,762 for Qualifying.EtymologyFrom Advent + -ism.nounThe Adventist Christian movement founded by William Miller in 19th-century United States.Any of several related movements.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.adventist 65% match — One who believes in the Second Advent (usually known as the Second Coming) of Jesus; an advocate of Adventism. vs adventism →millerism 59% match — The religious beliefs of the Millerites. vs adventism →methodism 59% match — The Methodist Christian movement founded by John Wesley in 18th-century England. vs adventism →adventual 54% match — Relating to the Advent. vs adventism →christadelphianism 51% match — The beliefs and practices of the Christadelphians. vs adventism →advent 51% match — Arrival; onset; a time when something first comes or appears; the time when it is approaching. vs adventism →adoptionist 50% match — One who believes in or supports adoptionism. vs adventism →adventition 49% match — The action or fact of occurring adventitiously; extrinsic addition or influence; accidental or incidental occurrence. vs adventism →