Source : Webster's Revised Unabridged Dictionary (1913)

Languid \Lan"guid\, a. [L. languidus, fr. languere to be faint
   or languid: cf. F. languide. See {Languish}.]
   1. Drooping or flagging from exhaustion; indisposed to
      exertion; without animation; weak; weary; heavy; dull. ``
      Languid, powerless limbs. '' --Armstrong.

            Fire their languid souls with Cato's virtue.
                                                  --Addison.

   2. Slow in progress; tardy. `` No motion so swift or
      languid.'' --Bentley.

   3. Promoting or indicating weakness or heaviness; as, a
      languid day.

            Feebly she laugheth in the languid moon. --Keats.

            Their idleness, aimless and languid airs. --W.
                                                  Black.

   Syn: Feeble; weak; faint; sickly; pining; exhausted; weary;
        listless; heavy; dull; heartless. -- {Lan"guid*ly}, adv.
        -- {Lan"guid*ness}, n.

Source : WordNet®

languidly
     adv : in a languid and lethargic manner; "the men languidly put on
           their jackets"