1. impossible to question or doubt; clearly true or certain
Usage: less common than ‘indisputable’

Examples

• The DNA evidence provided undisputable proof of his innocence.
• Her talent as a musician is undisputable.
• The facts presented in the report are undisputable.
• It is undisputable that exercise benefits your health.
• The champion’s victory was undisputable after winning by such a large margin.
• The historical records provide undisputable evidence of the event.