Source : Webster's Revised Unabridged Dictionary (1913)

Languorous \Lan"guor*ous\, a. [From {Languor}: cf. F.
   langoureux.]
   Producing, or tending to produce, languor; characterized by
   languor. [Obs. or Poetic]

         Whom late I left in languorous constraint. --Spenser.

         To wile the length from languorous hours, and draw The
         sting from pain.                         --Tennyson.

Source : WordNet®

languorous
     adj : lacking spirit or liveliness; "a lackadaisical attempt"; "a
           languid mood"; "a languid wave of the hand"; "a hot
           languorous afternoon" [syn: {dreamy}, {lackadaisical},
           {languid}]