supranational Syllabification: (su·pra·na·tion·al)Pronunciation: /ˌso͞oprəˈnaSHənl/Definition of supranational adjective having power or influence that transcends national boundaries or governments:supranational lawDerivatives supranationalismPronunciation: /-ˌizəm/ noun supranationalityPronunciation: /-ˌnaSHəˈnalitē/ noun supranational in other Oxford dictionaries Definition of supranational in the British & World English dictionary