1. Lacking zest or vivacity
   "he was listless and bored" 
2. Marked by low spirits; showing no enthusiasm
   "reacted to the crisis with listless resignation"
   - dispirited

See also: lethargic, listlessly, listlessness, spiritless, unenergetic

Encyclopedia: Listless

• twonk
• twopence
• twopenny
• twopenny-halfpenny
• twoscore
• twosome
• Twyla Tharp
• TX
• Tyan Shan
• Tyche
• Tycho Brahe
• tycoon
• tying
• tying up
• tyiyn
• tyke
• Tylenchidae
• Tylenchus
• Tylenchus tritici
• Tylenol
• Tyler
• tympan
• tympani
• tympanic
• tympanic bone