intergovernmentalPronunciation: /ˌɪntəgʌv(ə)nˈmɛnt(ə)l, -gʌv(ə)ˈmɛnt(ə)l/Definition of intergovernmental adjective relating to or conducted between two or more governments:an intergovernmental conferenceDerivatives intergovernmentally adverb intergovernmental in other Oxford dictionaries Definition of intergovernmental in the US English dictionary