Definition of Lackadaisical

Adjective: lackadaisical ,la-ku'dey-zi-kul

Lacking spirit or liveliness
"a lackadaisical attempt";
- dreamy, languid, languorous
Idle or indolent especially in a dreamy way
"she was annoyingly lackadaisical and impractical"; "a...lackadaisical, spiritless young man-about-town"