Breadcrumb Home > Thesaurus > C Synonyms of coetaneous Find synonyms for: Adjective1. coetaneous, coeval, contemporaneous, synchronous (vs. asynchronous), synchronal, synchronicusage: of the same periodWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of coetaneous (Dictionary) ✖ Related Content Daily Word Quiz: triumphalism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language