triumphal adj. + Add to list US //tɹaɪˈəmfəɫ// UK //tɹˈaɪʌmfəl// tri·umphal Archaic SynonymsEtymology Synonyms exultantexultingjubilantpridefulrejoicingtriumphantOriginOFRtrionfal→LATtriumphālis→MEtriumphal→ENtriumphal From Middle English triumphal, triumphall, tryumphal, from Latin triumphālis and Old French trionfal, triumphal.