: an extremely powerful nation or governing body having power over subordinate states
… Orwell's protagonist, Winston Smith, … starts keeping a forbidden diary in response to draconian rule in the fictional superstate of Oceania. Steve Barnes
The superb baroque staircase, lined with imperial Roman busts and portraits of emperors of the Holy Roman Empire, symbolizes the majestic superstate, founded in 800, by which Europe was haunted and embraced for a thousand years. Philip Mansel
In her speech to the Congress of Prague, she [Margaret Thatcher] described "the drive toward a European superstate, with its own government, its own laws, its own currency and its own citizenship," … Peter Brimelow
Ukrainians themselves are split over the sacrifices involved in giving up Russian markets and financial aid to gamble on moving into the European Union's modern economic superstate. Jim Hoagland