/ Thesaurus / C Synonyms of catskills Find synonyms for: Noun1. Catskills, Catskill Mountainsusage: a range of the Appalachians to the west of the Hudson in southeastern New York; includes many popular resort areasWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language