Second Advent se·con·dad·vent uncommon noun 1. (Christian theology) the reappearance of Jesus as judge for the Last Judgment SynonymsSecond ComingSecond Coming of ChristSecond AdventAdventParousia Related words Word family Second AdventismSecond Adventist Broader terms manifestation WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.