Synonyms: unenrgetic, lethargic
Definition: deficient in alertness or activity
Usage: bullfrogs became lethargic with the first cold nights
Similar words: logy, groggy, foggy, stuporous, dazed
Definition: stunned or confused and slow to react (as from blows or drunkenness or exhaustion)
Similar words: dreamy, lackadaisical, languid, languorous
Definition: lacking spirit or liveliness
Usage: a lackadaisical attempt; a languid mood; a languid wave of the hand; a hot languorous afternoon
Similar words: listless
Definition: lacking zest or vivacity
Usage: he was listless and bored