from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. In an incontrovertible manner; in a manner not capable of being denied, challenged, or disputed.
from The Century Dictionary and Cyclopedia
- In an incontrovertible manner.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. in an obvious and provable manner
From incontrovertible + -ly. (Wiktionary)