Which of these is the best definition of the word "languid"?

The best definition of the word "languid" is "sluggish." Languid refers to a state of being lacking in vigor, energy, or enthusiasm. It suggests a slow or relaxed pace and a general lack of activity or liveliness. While "depressed" may sometimes be associated with a lack of energy, it implies a different emotional state. "Talkative" and "warm" are unrelated to the meaning of "languid."