What was a major concern among the Anti-Federalists regarding the Constitution?

A major concern among the Anti-Federalists regarding the Constitution was the lack of a Bill of Rights. This group feared that the new Constitution did not provide sufficient protections for individual liberties. They believed that without explicit guarantees, the rights of citizens could be threatened by the powerful federal government that the Constitution established. The Anti-Federalists argued that a Bill of Rights was essential to protect freedoms such as speech, religion, and the right to bear arms. This concern ultimately led to the promise that amendments would be added to the Constitution to ensure these rights were protected, which culminated in the adoption of the first ten amendments, known as the Bill of Rights.