What would be a synonym for "unlawful"?

The term "unlawful" refers to something that is not allowed by law or is in violation of legal statutes. A synonym for "unlawful" should convey a similar meaning of being contrary to law or regulations.

The word "illegal" fits this definition perfectly, as it directly signifies actions or practices that are prohibited by law. It emphasizes the lack of legality and the consequences that can come from engaging in such activities. In legal contexts, when something is deemed illegal, it means that it is explicitly outlawed and can lead to penalties or legal action.

The other choices suggest forms of approval or conformity to rules, which contrasts with the idea of something being unlawful. "Legitimate," "permitted," and "authorized" imply that something is accepted within the confines of the law or regulations, making them unsuitable synonyms for "unlawful." Therefore, "illegal" stands out as the correct synonym, accurately reflecting the meaning of being against the law.