lackadaisical
1. [ adjective ] lacking spirit or liveliness
Synonyms: languid languorous dreamy
Examples:

"a lackadaisical attempt" "a languid mood" "a languid wave of the hand" "a hot languorous afternoon"

Related terms: lethargic
2. [ adjective ] idle or indolent especially in a dreamy way
Examples:

"she was annoyingly lackadaisical and impractical" "a...lackadaisical, spiritless young man-about-town"- P.G.Wodehouse

Related terms: idle
Similar spelling:   lackadaisically