frightful
adjective old-fashioned informal uk/ˈfraɪt.fəl/ us/ˈfraɪt.fəl/
（尤用于强调糟糕的程度）可怕的，讨厌的
used to emphasize what you are saying, especially how bad something is
The weather outside was frightful. 外面的天气非常可怕。
Of course the cleaning is a frightful bore. 清洁打扫的活儿当然是极其乏味的。
Synonyms: atrocious (VERY BAD)horrible