Breadcrumb Home > Thesaurus > I Cite Synonyms of irritant Find synonyms for: Noun1. irritant, thorn, annoyance, bother, botheration, pain, infliction, pain in the neck, pain in the assusage: something that causes irritation and annoyance; "he's a thorn in my flesh"WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.Definition and meaning of irritant (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress The Women's March on Versailles Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: suigeneris Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language