listless
adjective
[ ˈlɪs(t)ləs ]
• (of a person or their manner) lacking energy or enthusiasm.
• "bouts of listless depression"
Similar:
lethargic,
enervated,
lackadaisical,
spiritless,
unenergetic,
lifeless,
vigourless,
lacking energy,
limp,
effete,
languid,
languorous,
languishing,
inactive,
inert,
sluggish,
torpid,
supine,
half-hearted,
lukewarm,
indifferent,
uninterested,
impassive,
indolent,
idle,
apathetic,
shiftless,
slothful,
passive,
dull,
heavy,
Origin:
Middle English: from list3 + -less.
