Ninth Amendment

The Ninth Amendment (1791) states that listing certain rights in the Constitution "shall not be construed to deny or disparage others retained by the people," establishing that Americans hold unenumerated rights beyond those written in the Bill of Rights.

Verified for the 2027 AP US Government examLast updated June 2026

What is the Ninth Amendment?

The Ninth Amendment is the Bill of Rights' built-in disclaimer. It says that just because the Constitution names specific rights (speech, religion, jury trials, and so on), that list is not the full inventory of rights people actually have. The exact text matters here. The "enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people." In plain terms, the rights written down are a floor, not a ceiling.

This is where the concept of unenumerated rights comes from. These are rights the Constitution never spells out but that courts have still recognized, with the right to privacy as the most famous example. The Ninth Amendment exists because of a real fear during ratification. Some Federalists worried that writing a list of rights would imply the government could trample anything left off the list. The Ninth Amendment was the answer to that objection. It tells future interpreters that silence in the text does not equal permission for the government.

Why the Ninth Amendment matters in AP Gov

The Ninth Amendment lives in Unit 3: Civil Liberties and Civil Rights, specifically Topics 3.1 (The Bill of Rights) and 3.8 (Amendments). It supports learning objective AP Gov 3.1.A, explaining how the Constitution protects individual liberties and rights, and AP Gov 3.1.B, describing the rights in the Bill of Rights. It also connects to the essential knowledge that the application of the Bill of Rights is continuously interpreted by the courts. The Ninth Amendment is the textual hook judges use when they protect rights that appear nowhere in the document. If you understand this amendment, you understand why civil liberties debates are not just about reading a list. They are about arguing over what "retained by the people" actually covers.

How the Ninth Amendment connects across the course

Unenumerated Rights (Unit 3)

This is the concept the Ninth Amendment creates. Rights like privacy are never named in the Constitution, but the Ninth Amendment gives courts a textual basis to say they exist anyway.

Bill of Rights (Unit 3)

The Ninth Amendment is one of the ten amendments, but it works differently from the rest. The first eight protect specific liberties; the Ninth protects everything the first eight left out.

Federalist Opposition to a Bill of Rights (Unit 1)

Some Federalists argued during ratification that listing rights was dangerous because anything unlisted might be treated as unprotected. The Ninth Amendment was written to neutralize exactly that fear, which links your Unit 3 content back to the Unit 1 ratification debates.

Due Process and the Fourteenth Amendment (Unit 3)

When courts protect unenumerated rights against state governments, they usually pair the Ninth Amendment's idea with the Fourteenth Amendment's due process clause, since due process is the vehicle that applies rights to the states.

Is the Ninth Amendment on the AP Gov exam?

The Ninth Amendment shows up most often in multiple-choice questions that quote its text and ask which constitutional principle it reinforces. The answer they want is unenumerated rights, or more broadly, limited government and individual liberty. You may also see it in stems about why some Federalists initially opposed adding a Bill of Rights, since the Ninth Amendment was the direct response to their concern. No released FRQ has centered on the Ninth Amendment by name, but it is a strong piece of evidence in an Argument Essay about whether the Constitution adequately protects individual rights. Know the exact phrase "retained by the people" and be ready to explain that the amendment makes the Bill of Rights non-exhaustive.

The Ninth Amendment vs Tenth Amendment

These two sit side by side and both deal with things the Constitution doesn't list, so they blur together. The Ninth Amendment is about rights. Unlisted rights still belong to the people. The Tenth Amendment is about powers. Powers not given to the federal government are reserved to the states or the people. Quick check on the exam: if the question is about individual liberties, think Ninth; if it's about federalism and state power, think Tenth.

Key things to remember about the Ninth Amendment

  • The Ninth Amendment states that the rights listed in the Constitution are not the only rights people have, which establishes the principle of unenumerated rights.

  • It was added to answer the Federalist objection that writing down a list of rights would imply the government could violate any right left off the list.

  • The most important unenumerated right courts have recognized is the right to privacy, which the Constitution never explicitly mentions.

  • The Ninth Amendment protects rights retained by the people, while the Tenth Amendment reserves powers to the states, and the exam expects you to keep those straight.

  • Because the courts continuously interpret the Bill of Rights, the Ninth Amendment gives judges a textual basis for protecting liberties beyond the written list.

Frequently asked questions about the Ninth Amendment

What is the Ninth Amendment in simple terms?

It says the rights written in the Constitution are not a complete list. People keep other rights too, even ones the document never mentions. It was ratified in 1791 as part of the Bill of Rights.

Does the Ninth Amendment actually grant any specific rights?

No, and that's the trick MCQs play on you. It doesn't name a single right. Instead, it's a rule of interpretation telling courts not to treat the Bill of Rights as exhaustive, which is why it gets invoked alongside other amendments rather than alone.

What's the difference between the Ninth and Tenth Amendments?

The Ninth protects unlisted rights held by the people; the Tenth reserves unlisted powers to the states or the people. Ninth is about individual liberties (Unit 3 territory), Tenth is about federalism (Unit 1 territory).

Is the right to privacy in the Ninth Amendment?

Not in the text. Privacy is an unenumerated right, and the Ninth Amendment is part of the reasoning courts have used to recognize it. The Constitution never uses the word "privacy" anywhere.

Why did some Federalists oppose adding a Bill of Rights at all?

They feared that listing rights would imply any unlisted right was unprotected, making a written list dangerous rather than helpful. The Ninth Amendment was written specifically to defuse that argument, and this logic shows up in AP Gov practice questions.