What term refers to powers that Congress has but are not explicitly stated in the Constitution?

The term that refers to powers that Congress has but are not explicitly stated in the Constitution is "Implied Powers." These powers are derived from the Necessary and Proper Clause, which grants Congress the authority to pass laws that are essential for executing its enumerated powers. This flexibility allows Congress to adapt to new situations and challenges that the framers of the Constitution could not have anticipated. For example, while the Constitution does not explicitly grant Congress the power to create a national bank, it is considered an implied power because it is necessary for managing the nation's finances and is derived from Congress's ability to regulate commerce and levy taxes.

The other terms do have specific meanings: expressed powers are those clearly spelled out in the Constitution; enumerated powers are synonymous with expressed powers; and delegated powers refer to the powers specifically assigned to either the federal or state governments. However, it is the implied powers that highlight the adaptability of congressional authority beyond what is expressly written in the Constitution.