outside or beyond the authority of one national government, as a project or policy that is planned and controlled by a group of nations.
Origin of supranational
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
beyond the authority or jurisdiction of one national governmentthe supranational institutions of the EU
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012