矢口否认

Explanation: Insisted, refuses to acknowledge. 　　Usage: Partial official; as predicate; containing derogatory 　　Source: Yao Xueyin "Rereading," Volume I Chapter 16: "He is the face on the glory, denied that his sister is a 'concubine'." 　　Examples: For the crimes he committed, he ~. 　　Riddle: Know Thesaurus:  flatly disavow