Longman Dictionary of Contemporary English
unarguable
adjective
EXAMPLES FROM CORPUS
▪ But at the Redgrave you sit back and watch an unarguable Macbeth unroll.
▪ If there truly was unarguable proof of conspiracy or lack of it there wouldn't be a marketplace for the publications.
▪ Its most unarguable successes are in the main supporting roles.
▪ Only the truth had passed from Timothy Gedge, the unarguable strength of it, the power and the glory of it.
▪ The first unarguable influence on Agatha Christie's writings can be found in one of the Digressions in Beowulf.
▪ This offer was a real and unarguable fortune.
Wiktionary
unarguable
a. Not arguable; that cannot be reasonably argued against.
WordNet
unarguable
adj. against which no argument can be made [syn: inarguable]
Usage examples of "unarguable".
For a year or two the popular media had been full of articles about the Boskopoids as Homo superior, despite the unarguable fact that they had died out as a distinct group on all chronoplanes uptime from Luvah.