/ʌnˈtʃælɪndʒəbəl əˈkwɪtəl/ – Phrase
Definition: việc xử trắng án không gây nghi ngờ về tính xác đáng.
A more thorough explanation: An “unchallengeable acquittal” refers to a legal judgment or decision by a court that finds a defendant not guilty of the charges brought against them, and that cannot be contested, disputed, or questioned by any party involved in the case.
Example: The defendant’s unchallengeable acquittal by the jury put an end to the criminal proceedings against him.