INCONTESTABLY
Etymology
Adverb
incontestably (comparative more incontestably, superlative most incontestably)
In an incontestable manner.
Source: Wiktionary
INCONTESTABLE
In`con*test"a*ble, a. Etym: [Pref. in- not + contestable: cf. F.
incontestable.]
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition