Undernutrition is a term used to describe the condition in which an individual is not receiving adequate nutrients to maintain good health. This condition can manifest itself in different ways depending on the person and the severity of the undernourishment. There are several synonyms for undernutrition including malnutrition, inadequate nutrition, and underfeeding. These terms all describe the same disorder where the body is not receiving adequate nutrients to perform its functions properly. Other related terms may include starvation, wasting, and appetite loss. Ultimately, undernutrition is a serious health concern that can result in a wide range of negative effects, including developmental delays, increased susceptibility to disease, and even death.