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What word would describe an individual who is sluggish or inert?

  1. Placid

  2. Lethargic

  3. Virulent

  4. Pledge

The correct answer is: Lethargic

The word "lethargic" is used to describe an individual who exhibits a lack of energy or enthusiasm, often appearing sluggish or inactive. This term conveys a state of drowsiness or fatigue that can affect one’s ability to engage in activities fully. In contrast, "placid" describes a calm or tranquil state but does not inherently imply sluggishness; it may suggest stillness rather than lack of energy. "Virulent" refers to something that is extremely harmful or hostile, such as a disease, and is unrelated to a person’s energy level. "Pledge" refers to a promise or commitment and has no connection to describing an individual's energy or activity level. Therefore, "lethargic" is the most suitable choice for someone who is sluggish or inert, capturing the essence of low energy and lack of vitality.