dreamy, lackadaisical, languid, languorous (adj)

lacking spirit or liveliness

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

languid (Adjective)

Lacking enthusiasm, energy, or strength; drooping or flagging from weakness, fatigue, or lack of energy; indisposed to exertion; sluggish; relaxed: as, languid movements; languid breathing.

languid (Adjective)

Heavy; dull; dragging; wanting spirit or animation; listless; apathetic.