Ninth Amendment:The Ninth Amendment to the U.S. Constitution states that the enumeration of certain rights in the Constitution shall not be construed to deny or disparage other rights retained by the people.
Substantive Due Process: A legal doctrine that allows courts to protect certain fundamental rights from government interference, even if the rights are not specifically enumerated in the Constitution.
Penumbra Doctrine: The idea that certain fundamental rights are implied or 'penumbral' to the rights explicitly stated in the Bill of Rights, and thus deserve protection.