/ Thesaurus / D Synonyms of downbound Find synonyms for: Adjective1. downbound, down (vs. up)usage: heading in any direction that is conventionally down; "a downbound channel"; "the downbound train"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: frowzy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language