Adjective: lethargic lu'thaa(r)-jik
- Deficient in alertness or activity
"bullfrogs became lethargic with the first cold nights";
- unenergetic
See also: dazed, dreamy, foggy, groggy, inactive, lackadaisical, languid, languorous, listless, logy [N. Amer], stuporous
Antonym: energetic
Encyclopedia: Lethargic