Added 9 October 2026 trilogical adjective Categories: Obscure Words adjective ! Definition from Wiktionary (CC BY-SA). More about trilogical at Wordnik → Where our words come from → Pertaining to or organized into a trilogy. Having three parts, branches, or stages. Three-way. Related Words: triadictrinitarytritheisticaltrigraphictriangulartrierarchaltriglottrinitariantrialecticaltridirectionaltriphthongaltetrarchical Back to today's word