Lack of physical or mental energy; listlessness. See Synonyms at lethargy.
A dreamy, lazy mood or quality: "It was hot, yet with a sweet languor about it"(Theodore Dreiser).
Oppressive quiet or stillness.
[Middle English, from Old French, from Latin, from languēre, to be languid; see languish.] lan'guor·ous adj., lan'guor·ous·ly adv., lan'guor·ous·ness n.