from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The state of being listless; indifference; lethargy.
from The Century Dictionary and Cyclopedia
- n. The state of being listless; indifference to what is passing; languid inattention.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. inactivity resulting from lethargy and lack of vigor or energy
- n. a feeling of lack of interest or energy
From listless + -ness. (Wiktionary)