Operational exhaustion is a term used to describe the feeling of being completely drained after a long period of hard work or intense mental strain. There are several synonyms that can be used to describe this feeling, including burnout, fatigue, depletion, and depletion of energy. Burnout is the feeling of being emotionally and physically exhausted, while fatigue is a general feeling of tiredness. Depletion refers to the loss of resources, such as energy or mental capacity, while depletion of energy specifically describes a feeling of being drained of energy. Other synonyms for operational exhaustion include exhaustion, weariness, and tiredness. Regardless of the term used, it is important to recognize the need for rest and self-care in order to prevent burnout.