Criminal behaviour is a term that represents actions that are considered illegal or unlawful in nature. It relates to activities that violate the law and are punishable by the government. There are several synonyms for criminal behaviour that can be used to describe this concept. These include antisocial behaviour, illicit behavior, lawbreaking, misconduct, offense, transgression, violation, wrongdoing, and delinquency. Each of these words carries a slightly different nuance, but all refer to activities that contravene established laws or social norms. Using these synonyms can help to convey the seriousness of criminal behaviour and its consequences, both for individuals and society as a whole.