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

See also: idle, lackadaisically, lethargic, unenergetic

• abrupt
• abruptio placentae
• abruption
• abruptly
• abruptly-pinnate
• abruptly-pinnate leaf
• abruptness
• Abruzzi
• Abruzzi e Molise
• ABS
• abscess
• abscessed
• abscessed tooth
• abscise
• abscissa
• abscission
• abscond
• absconder
• abscondment
• abseil
• abseiler
• absence
• absence seizure
• absence without leave
• absent