self-control, self-controlled, controlled self, sensible, use good sense, self-indulgence

Definition:

Self-control is the ability to control one's behavior in order to avoid sinning.

It refers to good behavior, that is, avoiding sinful thoughts, speech, and actions.
Self-control is a fruit or characteristic that the Holy Spirit gives to Christians.
A person who is using self-control is able to stop himself from doing something wrong that he may want to do. God is the one who enables a person to have self-control.
Self-indulgence is the opposite of self-control.