/ Thesaurus / S Synonyms of smell up Find synonyms for: Verb1. stink up, smell up, stink out, odorize, odourise, scentusage: cause to smell bad; fill with a bad smellWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language