/ Thesaurus / M Synonyms of mountain lion Find synonyms for: Noun1. cougar, puma, catamount, mountain lion, painter, panther, Felis concolor, wildcatusage: large American feline resembling a lionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language