flabbergasted Pronunciation: /ˈflæbərˌɡæstəd; ˈflæbəˌɡɑːstɪd/Translate flabbergasted | into Italian Spanish translation of flabbergastedadj estupefactoflabbergasted in other Oxford dictionaries Definition of flabbergasted in the British & World English dictionary Definition of flabbergasted in the US English dictionary