An adequate amount is a sufficient quantity that meets the minimum requirements or standards necessary to achieve a particular outcome. It refers to an amount that is enough, but not excessive, and can vary depending on the context in which it is used. For example, an adequate amount of water may be defined as the minimum amount needed to keep a plant healthy, while an adequate amount of food might refer to the necessary caloric intake for maintaining energy levels. In essence, an adequate amount refers to what is considered "enough" in a given situation or circumstance.