Wiktionary
undisputably
adv. In a undisputable manner; undeniably.
Usage examples of "undisputably".
A severely dressed Paulette, with her hair scraped back, away from her face, yet undisputably the same girl who had called round to the Mini-Market and asked him out for dinner.
Was it with some reluctance that he tore himself away from the undisputably charming company of Flavia?
Whoever began the fracas, Akkhtimakt's agents or Sikkukkut’s, it was undisputably Sikkukkut's ship Harukk which sped out of Kshshti with Tully and Hilfy aboard, with The Pride dockbound and helpless.