/ Thesaurus / D Synonyms of downward sloping Find synonyms for: Adjective1. declivitous, downhill, downward-sloping, descending(prenominal) (vs. ascending)usage: sloping down rather steeplyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language