大不韪 Traditional form: 大不韙 Pinyin (reading): dàbùwěi Definitions: great error heinous crime Characters: 大 - big, great, vast, high, deep 不 - no, not, un-; negative prefix 韪 - right; proper; perpriety Traditional characters: 大 - big, great, vast, high, deep 不 - no, not, un-; negative prefix 韙 - right; proper; perpriety