lackadaisical
/ˌla-kə-ˈdā-zi-kəl/
adjective
lacking life, spirit, or zest : languid
teachers who are impatient with lackadaisical students
languid languorous lackadaisical listless spiritless mean lacking energy or enthusiasm. languid refers to an unwillingness or inability to exert oneself due to fatigue or physical weakness. languorous suggests a dreamy boredom and delicacy that avoids unnecessary activity.