Which amendment states that rights not listed in the Constitution are still rights?

The Ninth Amendment explicitly addresses the existence of rights that may not be enumerated in the Constitution. It asserts that the enumeration of certain rights within the Constitution should not be interpreted as denying or disparaging others retained by the people. This means that individuals possess rights beyond those explicitly listed, emphasizing the principle that the Constitution's silence on certain rights does not imply that those rights do not exist.

This amendment was included to ensure a broader interpretation of individual rights, protecting them from government infringement even if not explicitly spelled out in the document. For instance, this could be applied to privacy rights or other civil liberties that are not directly mentioned but are nonetheless vital to personal freedom and autonomy. In contrast, the other amendments listed focus on specific rights: the First Amendment covers freedoms related to speech and religion, the Second Amendment concerns the right to bear arms, and the Fourth Amendment protects against unreasonable searches and seizures, without addressing the broader principle of unenumerated rights.