incontrovertible adj. + Add to list US //ˌɪŋˌkɑntɹoʊˈvɝtɪbəɫ// UK //ɪnkˌɒntɹəvˈɜːtəbəl// in·con·tro·vert·ible SynonymsEtymology Synonyms demonstrableirrefutablepositiveOrigin From in- + controvertible.