Supranationalism is often used when people discuss the power or the decisions of the supranational union that their country is a part of.

This is how you counter nationalism with supranationalism. I look forward to @theSNP returning Scotland to the European Union. https://t.co/pyLSLi6R0f

— Salah Maker⏳🖖🌹 (@salahmaker) January 15, 2020

Many in the #LabourLeadership, like @lisanandy here, still toil under a false dynamic between internationalism & nationalism, when it's extreme supranationalism that most UK voters rejected. Political success won't follow a false premise.#LabourLeadershipElection #Labour https://t.co/PWB1VJO18w

— Stuart Coster (@StuartCoster) January 16, 2020

Did you mean supernationalism?