不折不扣 (bù zhé bú kòu): сто процентов

He is not only a workaholic but also a hundred percent perfectionist; he would revise every report a dozen times before submitting it.

The service at this restaurant was terrible—we waited an hour for the food, and the taste was a hundred percent disappointing.

Those words he said were a hundred percent lies, and later they were exposed one by one by evidence.

This out-and-out disaster plunged the entire village into despair, but fortunately the rescue team arrived in time.