十恶不赦 [- è bú shè]perpetrate every conceivable [heinous] crime and be unpardonably wicked; a crime which is past forgiving; be too wicked to be pardoned; guilty beyond forgiveness; guilty of unpardonable evil; unpardonably wicked; wicked beyond redemption; wicked to the extreme:
•¶ 一群青面獠牙，十恶不赦的人 a horde of fiendish monsters who perpetrate every conceivable crime and are unpardonably wicked