Antonyms for the term "declares lawful" include disallow, forbid, and prohibit. These terms denote the act of declaring something illegal, unethical, or immoral. Disallow refers to a decision to reject or deny something, particularly legal claims or bids, while forbid refers to an authoritarian order to prohibit or prevent certain actions from taking place. Prohibit, on the other hand, implies a formal imposition of a rule, norm, or policy to stop an activity or limit access to certain items or places. These antonyms are often used in legal, regulatory, or administrative contexts to clarify the boundaries of permissible or impermissible behaviour.