The word “lethargic” refers to a state of extreme tiredness or lack of energy, where a person feels sluggish and lacks motivation to engage in activities. It can also describe a general feeling of laziness or drowsiness.
Interesting fact: The term “lethargic” originates from the Greek word “lethargos,” which means “forgetful” or “dull.” This reflects the mental and physical dullness associated with the state of lethargy.