Webster’s Revised Unabridged Dictionary · 1913
Listless
List′less, a. [OE. listles, lustles. See Lust.] Having no desire or inclination; indifferent; heedless; spiritless. " A listless unconcern." Thomson.
Benumbed with cold, and listless of their gain. Dryden.
I was listless, and desponding. Swift.
Syn. — Heedless; careless; indifferent; vacant; uninterested; languid; spiritless; supine; indolent.
— List′less·ly, adv. — List′less·ness, n.