/ Thesaurus / N Synonyms of nasal decongestant Find synonyms for: Noun1. nasal decongestant, decongestantusage: a decongestant that provides temporary relief of nasal symptoms of the common cold and rhinitis and upper respiratory infectionsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language