sovereignism noun2 •A doctrine which supports acquiring or preserving the political independence of a nation, region or group, from external or higher-level entities (e.g. federalism or supranational unions like the UN) or from internal (e.g. ethnic or sexual minority) groups it considers subversive.Ambiguities built into the Soviet constitutions allowed a crisis of sovereignism, often called the Parade of Sovereignties, to break the Union in 1991. •The defence of the sovereignty of individual European countries in the face of broader European or European Union integration.