Added 9 October 2026 triadic adjective Categories: Rare Words adjective ! Definition from Wiktionary (CC BY-SA). More about triadic at Wordnik → Where our words come from → Of or relating to a triad. Having an arity of three; taking three arguments or operands. Having an arity of three; taking three arguments or operands. Trivalent. Related Words: reciprocalitytriangulartritheisticaltrinitarytrilogicaltrigraphictridirectionaltrimetrictriphthongaltribadictrinitariantritheistic Back to today's word