/ Thesaurus / I Synonyms of isthmian games Find synonyms for: Noun1. Isthmian Games, agonusage: the ancient Panhellenic games held biennially on the Isthmus of Corinth in the first and third years of each OlympiadWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language