[1] : The Collaborative International Dictionary of English v.0.48

lackadaisical \lack`adai"sical\ la^k`.ad=a"zi^kal,
   a. from lackadaisy, interj.
   1. affectedly pensive; languidly sentimental; dreamy.
      1913 webster

   2. lacking spirit or liveliness; lethargic; listless;
      languid.
      pjc

   3. indolent; lazy; idle, especially in a dreamy manner.
      pjc -- lack`adai"sically, adv.
      1913 webster
see also:
lackadaisy lack`adai"sically 

[2] : WordNet (r) 2.0

lackadaisically
     adv : in an idle and lackadaisical manner; "he was hanging around
           the house lackadaisically"

Lackadaisically >> L Words
Lackadaisically, definition of term: Lackadaisically
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