Acting-out is a term that is commonly used to describe disruptive behavior. However, there are several synonyms that can be used to describe this behavior, including misbehaving, rebelling, unruly, defying, disorderly, disturbing, and challenging authority. These synonyms all describe behavior that is non-compliant or goes against established norms or rules. This behavior can be carried out by children, adolescents, and even adults. Acting-out can be a sign of underlying issues such as stress, anxiety, or trauma, and it is important to address the root cause of the behavior rather than simply trying to control or punish the individual.