/ Thesaurus / C Synonyms of chthonic Find synonyms for: Adjective1. chthonian, chthonic, nether, infernal (vs. supernal)usage: dwelling beneath the surface of the earth; "nether regions"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language