1. impossible to reform, improve, or correct
Usage: formal

Examples

• The judge declared the repeat offender irreformable and sentenced him to life in prison.
• Some critics argue that the corrupt system is irreformable and must be completely replaced.
• The teacher struggled with the irreformable student who refused to change his disruptive behavior.
• Many believed the dictator’s regime was irreformable and could only be removed by force.
• The company’s toxic culture seemed irreformable despite multiple attempts at change.
• Experts debated whether the failing institution was irreformable or simply needed better leadership.