Most disclosed means something that has been revealed or made known to others. Antonyms for this term include secret, concealed, hidden, undisclosed, unrevealed, and unexposed. These words indicate that the information is not available to the general public, it is kept secret or hidden. They are often used to describe confidential information or information that is legally protected. Such information may include classified documents, secret formulas, or trade secrets. The antonyms for most disclosed are often used in legal or business documents to signify that certain information should not be shared or disclosed without authorization.