Webster's Revised Unabridged Dictionary · 1913

Listless

Listless , adjective

[Old English 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