Opposed Ratification refers to the stance taken by those who were against the approval of the U.S. Constitution during the ratification process in the late 18th century. This group, known as Anti-Federalists, raised concerns about the potential for a strong central government to infringe upon individual liberties and state sovereignty, fearing it would lead to tyranny similar to that experienced under British rule. Their arguments significantly shaped the national debate and led to the eventual inclusion of the Bill of Rights as a compromise to secure support for the Constitution.