dreamy, lackadaisical, languid, languorous -- (lacking spirit or liveliness; "a lackadaisical attempt"; "a languid mood"; "a languid wave of the hand"; "a hot languorous afternoon")
lackadaisical -- (idle or indolent especially in a dreamy way; "she was annoyingly lackadaisical and impractical"; "a...lackadaisical, spiritless young man-about-town"- P.G.Wodehouse)
(Sound)
