The word "un curbed" means not restrained, uncontrolled, or unchecked. Therefore, its antonyms would be words with the meanings of restricted, controlled, limited, or regulated. Some examples of antonyms for "un curbed" are restrained, curbed, restricted, confined, limited, regulated, checked, governed, guided, and managed. These words suggest a sense of order and control, indicating that something is being monitored or kept in check. By using these antonyms, we imply that something has been subjected to limitation or control, making it more manageable, safe, or organized.