The Collaborative International Dictionary
Incontestableness
Incontestable \In`con*test"a*ble\, a. [Pref. in- not +
contestable: cf. F. incontestable.]
Not contestable; not to be disputed; that cannot be called in
question or controverted; incontrovertible; indisputable; as,
incontestable evidence, truth, or facts.
--Locke.
Syn: Incontrovertible; indisputable; irrefragable; undeniable; unquestionable; intuitable; certain. -- In`con*test"a*ble*ness, n. -- In`con*test"a*bly, adv.
Wiktionary
incontestableness
n. The quality of being incontestable.