/ Thesaurus / P Synonyms of permian period Find synonyms for: Noun1. Permian, Permian periodusage: from 280 million to 230 million years ago; reptilesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: bibliophile Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language