offend against something
phrasal verb with offend verb uk/əˈfend/ us/əˈfend/
formal
违反，触犯（规则）；违背（常理）
to break a rule or principle or not fit well with something that people consider to be correct
Would it be offending against good taste to wear a patterned tie with my striped shirt? 你觉得打一条有图案的领带来配我的条纹衬衫是否有些不伦不类？