The least amount of knowledge of reality that can be acquired through reason independent of sense experience is called?

Empiricism

Explanation:

Empiricism in philosophy, the view that all concepts originate in experience, all aspects are about or applicable to what we experience. All are accepted rationally beliefs and propositions that are gained by the experience. The definition is describing that all are applied based on experience. It includes the implicit theory meaning according to the meaningful words that are only so far that convey the concept. All concepts are either mental copies that are directly experiencing or the copies of the complex combination of that of themselves are the copies of items that are directly experienced. It indicates that the concept must be specified in specific experience items. The third principle is the theory of knowledge or justification of the knowledge. It views the beliefs or somehow the wide belief are dependent on justification.

Empiricism