Breadcrumb Home > Thesaurus > N Synonyms of noxious Find synonyms for: Adjective 1. noxious (vs. innocuous), baneful, deadly, pernicious, pestilent, corrupting, degrading, vesicatory, vesicant, harmful, toxic, unwholesome usage: injurious to physical or mental health; "noxious chemical wastes"; "noxious ideas" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of noxious (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: variegate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language