/ Thesaurus / C Synonyms of council of ephesus Find synonyms for: Noun1. Ephesus, Council of Ephesus, ecumenical councilusage: the third ecumenical council in 431 which declared Mary as mother of God and condemned PelagiusWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: kiln Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language