from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. In an unprofitable manner.
from The Century Dictionary and Cyclopedia
- In an unprofitable manner; without profit, gain, benefit, advantage, or use; to no good purpose or effect.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. without gain or profit
- adv. in an unproductive manner
unprofitable + -ly (Wiktionary)