Breadcrumb Home > Thesaurus > I Synonyms of irrefutable Find synonyms for: Adjective 1. incontrovertible, irrefutable, positive, undeniable (vs. deniable) usage: impossible to deny or disprove; "incontrovertible proof of the defendant's innocence"; "proof positive"; "an irrefutable argument" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of irrefutable (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Ramadan and Eid al-Fitr 42 Best War Movie Quotes Current Events This Week: March 2023 Recycling Facts William Shakespeare Worst U.S. Forest Fires ✖ Related Content Daily Word Quiz: tangential Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language