Supranational rhymes with:
binational, internacional, international, internatonal, multinational, national, transnational, binational, internacional, international, internatonal, irrational, multinational, national, rational, transnational
binational, internacional, international, internatonal, multinational, national, transnational, binational, internacional, international, internatonal, irrational, multinational, national, rational, transnational