The word "un-disciplined" is often used when referring to someone who lacks the necessary self-control, order, or obedience. Some synonyms for "un-disciplined" include "undisciplinable," "unruly," "untamed," "disorderly," "eccentric," "unrestrained," "reckless," "uncontrolled," "boisterous," "unmanageable," and "wild." Each of these synonyms conveys a particular degree, pattern, or state of behavior that reflects a person who is not capable of discipline. Therefore, when describing an un-disciplined individual, it is essential to use synonyms that best capture the specific aspects of their behavior that require discipline or corrective measures.