maddeningly

/ˈmædnɪŋli/ 0
in an extremely annoying way. "their failings were maddeningly ignored"

adverb [方式副词]使人恼火地;令人发狂地

Progress is maddeningly slow.
进展慢得令人心烦。

单词造句:
网友用“Maddeningly”造句精选
The service is maddeningly slow. 服务慢得让人恼火。