undutiful From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsadjectiveNot dutiful. Related wordsSynonymsimpiousdisrespectfulunduteousundutiabledisobedientunpraiseworthyundutiednonobedientunservileundutchedunrightfulunadmirableunmanfulundiligentunworshipfulundecorous References Wiktionary — undutiful Wikipedia — undutiful