beyond question

Definitions

Indisputable or certain; not open to doubt.

Absolutely true or established as a fact.

Examples

It is beyond question that the team's hard work led to their success.

The authenticity of the ancient artifact is beyond question after the latest laboratory tests.

Synonyms

indisputable unquestionable beyond a doubt certain undeniable irrefutable beyond dispute

Antonyms

debatable questionable uncertain dubious disputable controversial open to question