Breadcrumb Home > Thesaurus > G Synonyms of gadfly Find synonyms for: Noun 1. pest, blighter, cuss, pesterer, gadfly, tormentor, tormenter, persecutor usage: a persistently annoying person 2. gadfly, fly usage: any of various large flies that annoy livestock WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of gadfly (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: spelunk Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language