From Longman Dictionary of Contemporary Englishunarguableun‧ar‧gu‧a‧ble /ʌnˈɑːɡjuəbəl $ -ˈɑːr-/ adjective TRUEsomething that is unarguable is definitely true or correct unarguable proof —unarguably adverb
Examples from the Corpus
unarguable• This offer was a real and unarguable fortune.• The first unarguable influence on Agatha Christie's writings can be found in one of the Digressions in Beowulf.• 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.• Only the truth had passed from Timothy Gedge, the unarguable strength of it, the power and the glory of it.• Its most unarguable successes are in the main supporting roles. 