令人发指的反义词有:一笑置之
◎令人发指lìngrénfàzhǐ
[get one's hackles up;disgusting;make one's hair stand on end;make one's hair stdnd up in anger] 因愤怒而致头发直立。形容愤怒之极
但报总不能不看,一看,则昏话之多,令人发指。——《鲁迅书信集》