What is the meaning of the word lethargic?

The word "lethargic" is best defined as sluggish, which accurately captures the essence of feeling slow, tired, or lacking in energy. When someone is described as lethargic, it indicates a state of dullness or inactivity, often associated with fatigue or an overwhelming sense of tiredness that makes it difficult to engage in activities. In contrast, the other options do not align with this meaning: "calm" suggests a state of tranquility or peace, "conscious" refers to being aware or awake, and "elaborate" relates to being detailed or complex in style or explanation. These alternatives focus on entirely different contexts, further confirming that sluggish is the most appropriate definition for lethargic.