1. Willfulness: Refers to acting according to one's character, indulging without restraining oneself, not following rules or the wishes of others, often carrying the meaning of being arbitrary and disregarding consequences.
2. Unrestrained: Refers to indulging one's emotions, acting arbitrarily, without restraint. Commonly used to describe a person's unrestrained and unrestrained state of emotions or behavior.
3. Willful and unrestrained: Combining the two, it means that a person not only indulges their personality, but also freely indulges their emotions, without being limited by external rules or other people's opinions, and acts completely according to their own wishes and emotions. This attitude may manifest as freedom and recklessness, but it can also lead to uncontrolled behavior or disregard for others' feelings.