If punitive means "intended as punishment":
* Rehabilitative: Focuses on correcting behavior and helping individuals become productive members of society.
* Restorative: Aims to repair harm done and build relationships between individuals.
* Therapeutic: Emphasizes healing and addressing the underlying causes of behavior.
If punitive means "imposing a penalty":
* Rewarding: Giving a benefit or positive consequence for good behavior.
* Incentivizing: Motivating someone to act through the promise of rewards.
* Supportive: Offering assistance and encouragement.
In general, the opposite of punitive can also be:
* Lenient: Mild and merciful.
* Forgiving: Willing to pardon or overlook offenses.
* Compassionate: Having empathy and understanding.
The best opposite for "punitive" will depend on the specific situation and the intended meaning.