不值一驳 meaning in English

be not worth refuting; not merit refutation

I shall not reply to such a scurrilous attack upon me ; it is beneath contempt
我不会去理睬对我的这种谩骂攻击，那不值一驳。
With his notions of dignity , he would probably feel that the arguments , which to elizabeth had appeared weak and ridiculous , contained much good sense and solid reasoning
咖苔琳夫人说了那么一大堆理由，伊丽莎白当然觉得荒唐可笑，不值一驳，可是有他那样一个死要面子的人看来，也许会觉得见解高明，理由充足。