“Contra bonos mores” is a Latin phrase which means “against good morals” or “contrary to good morals” in English. This terminology is commonly used in legal contexts to refer to actions or behaviors that are regarded as immoral, unethical, or against accepted standards of decency. In legal systems, actions that conflict with good morals may face legal penalties or sanctions. This concept is particularly essential in areas of law that deal with issues of public morality, such as laws governing obscenity or laws regulating certain types of contracts or agreements that are deemed unethical.