A permanent injunction is a final court remedy that permanently bars a party from engaging in specific conduct. Unlike a preliminary or temporary injunction, it is issued after full consideration of the evidence and legal arguments — it represents the court's final ruling on the merits. To get a permanent injunction, a party must show: (1) a legal violation, (2) inadequate remedy at law (money damages aren't enough), and (3) that the balance of harms favors the injunction. A permanent injunction can be appealed but stays in force unless an appeals court issues a stay.