The Bill of Rights in the National Archives. The Ninth Amendment (Amendment IX) to the United States Constitution, which is part of the Bill of Rights, addresses rights, retained by the people, that are not specifically enumerated in the Constitution.ome jurists have asserted that the Ninth Amendment is relevant to interpretation of the Fourteenth Amendment. Justice Arthur Goldberg (joined by Chief Justice Earl Warren and Justice William Brennan) expressed this view in a concurring opinion in the case of Griswold v. Connecticut (1965):