adjective
indisputable
in-di-SPYOO-tuh-bul/ˌɪndɪˈspjuːtəbl/
Impossible to reasonably question or deny.
The four visible counters make the addition's result indisputable.

Etymology
Disputare covered examining and arguing a matter; dispute came to include arguing against a claim. Indisputable describes something so certain that it cannot reasonably be challenged that way.
In context
a U-shaped basin, the hallmark of a classic glacial valley. It was indisputable evidence that Muir's intuitive observations and seemingly far-fetched theory were correct
More examples
- Her skill as a pianist is indisputable.
- The signed receipt is indisputable evidence of payment.
- They disagree about the solution, but the problem's existence is indisputable.
Forms
indisputable
indisputably adverb — In a way beyond reasonable doubt.
Similar words
- undeniable
- Emphasizes that a fact cannot honestly be denied.
- irrefutable
- Especially describes arguments or evidence that cannot be disproved.