/ Thesaurus / S Synonyms of steep sided Find synonyms for: Adjective1. steep-sided, steep (vs. gradual)usage: having very steep sidesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language