Irrefutable (adjective)

1. Undeniable, incontrovertible, or beyond dispute.
2. Conclusively proven, beyond any reasonable doubt.

Origin:

Derived from the latin word 'irrefutabilis' meaning unable to be disproven.

Examples:

1. The irrefutable evidence of the defendant's guilt was presented in court.
2. The irrefutable facts about climate change indicate that immediate action is necessary.
3. The irrefutable logic of the argument convinced even the most skeptical listeners.
4. The irrefutable proof of the theorem finally silenced the doubters.
5. The irrefutable results of the experiment provided valuable insights into the phenomenon.