The word "incontrovertible" means something that is undeniable or impossible to argue against, usually because it is supported by strong evidence or facts. Full definition
The publication is full of incontrovertible evidence which proves beyond a doubt that, contrary to its official company line, Nestle is in flagrant violation of the International Code of Marketing of Breast - milk Substitutes, and is aggressively marketing its infant feeding products with shocking disregard for infant health. (infactcanada.ca)
Incontrovertible truths, really, that will not be proven false by the next 161 games. (sbnation.com)
That situation however is about to change dramatically as incontrovertible evidence of the dastardly murder has emerged. (ghanapoliticsonline.com)