intergovernmentaladjective
/ˌɪn.tə.ɡʌv.ənˈmen.təl//-t̬ɚ.ɡʌv.ɚnˈmen.t̬əl/also intergovernment, /ˌɪn.təˈɡʌv.ən.mənt//-t̬ɚ.ɡʌvɚn-/between two or more governments:
There are plans for another intergovernmental conference in 2016.
an intergovernmental agreement
intergovernment negotiations