1. in a sovereign manner; with supreme power or authority
2. independently; without external control

Examples

• The nation acted sovereignly in its foreign policy decisions.
• The monarch ruled sovereignly over the entire kingdom.
• Each state operates sovereignly within its constitutional boundaries.
• The court decided sovereignly without outside interference.
• The parliament voted sovereignly on the new legislation.
• The territory governed itself sovereignly after independence.