unprecedentedPronunciation: /ʌnˈprɛsɪdɛntɪd/Translate unprecedented | into French | into German | into Italian | into Spanish Definition of unprecedented adjective never done or known before:the government took the unprecedented step of releasing confidential correspondenceDerivatives unprecedentedly adverb [as submodifier]:a period of unprecedentedly high pricesunprecedented in other Oxford dictionaries Definition of unprecedented in the US English dictionary
