What is the antonym of "public"?

Urdu Translation: عوامی، سب کے لیے — Meaning: Public means open, accessible, or available to everyone. It often refers to places, information, or services meant for common people. In governance and communication, it implies openness and shared access. Example sentence: “The park is open for public use every day.” Other Synonyms: open, communal, common, shared, accessible, collective. Usage Insight: The word highlights openness and availability to all people.