“无端的”的英语可以翻译为：[机] endless ...

无端的负罪感压得她喘不过气来。The weight of irrational guilt pressed on her.无端的侵犯行为an act of unprovoked aggression你上周的报告是不公平的。它是基于毫无根据且完全无端的指控。Your report last week was unfair. It was based upon wholly unfounded and totally unjustified...