1. the state or quality of being against the law

Examples

• The lawyer questioned the illegality of the search warrant.
• Many citizens were unaware of the illegality of downloading copyrighted music.
• The company faced serious consequences due to the illegality of their business practices.
• The court ruled on the illegality of the new tax policy.
• Protesters argued about the illegality of the government’s actions.
• The illegality of the contract made it void and unenforceable.