unanswerably
Adverb
Meaning
unanswerably
In an unanswerable manner; beyond refutation.
Examples
WHEREFORE, security being the true design and end of government, it unanswerably follows, that whatever FORM thereof appears most likely to ensure it to us, with the least expense and greatest benefit, is preferable to all others.
If you can say a thing with one stroke, unanswerably you have style if not, you are at best a marchande de plaisir, a decorative litt.