Как по Английски будет 不可否认

adjective

Unable to be denied or disputed.

Примеры использования:

It is an undeniable fact that some dogs are easier to train than others

adverb

Used to emphasize that something cannot be denied or disputed.

Примеры использования:

The results were undeniably impressive

adjective

Not denied.

Примеры использования:

Admittedly it isn't easy to know what is true and what has merely gone undenied.