Mob action refers to the violent behaviors exhibited by a group of people when they behave in a disorderly manner. Synonyms for mob action include rioting, rampage, unrest, disturbance, tumult, commotion, and upheaval. These words describe the chaotic nature of group behavior that can be dangerous to the public and property. Other synonyms for mob action can include rebellion, insurrection, uprising, and mutiny, which suggest a more organized and concerted effort by a group to achieve a goal. Regardless of the context, all the synonyms for mob action describe a situation where people are banding together to cause destruction and chaos.