lethargic

1. Deficient in alertness or activity (synset 300879020)
   "bullfrogs became lethargic with the first cold nights"
   also: inactive - not active physically or mentally
   similar to:

   • dazed, foggy, groggy, logy, stuporous - stunned or confused and slow to react (as from blows or drunkenness or exhaustion)
   • dreamy, lackadaisical, languid, languorous - lacking spirit or liveliness
   • listless - lacking zest or vivacity
   same as: unenergetic

Other Searches

• Rhyme: Dillfrog, RhymeZone
• Definition: Wiktionary, Dictionary.com, Wikipedia, Merriam-Webster, WordNet, Power Thesaurus
• Imagery: Google, Flickr, Bing