uncontrovertible

comparative more uncontrovertible · superlative most uncontrovertible

1. incontrovertible

   Nothing that any German can ever say or write will efface from the memory of the world the uncontrovertible fact that your Chancellor officially admitted your country's guilt in this matter.

   1917, Douglas W. Johnson, Plain Words From America

   1 more example

   For when I recollect, singly, the particular positions upon which his opinion seems to be founded, I do not find them by any means uncontrovertible; some of them seem at best uncertain, and some evidently mistaken.

   1825, Samuel Johnson, The Works of Samuel Johnson, Vol. 11.