If you say that something does not happen or is not done unduly, you mean that it does not happen or is not done to an excessive or unnecessary extent. 过分地
adverb [方式副词]过度地;不适当地;不正当地
This will achieve greater security without unduly burdening the consumers or the economy. 这将获得更大的安全而没有给消费者或经济过度增加负担。