frightfully
US /ˈfraɪt.fəl.i/
UK /ˈfraɪt.fəl.i/
副詞
ひどく, 非常に, 恐ろしく
extremely or very much (used for emphasis)
例:
•
It's frightfully cold outside today.
今日は外がひどく寒い。
•
She's frightfully clever, isn't she?
彼女はひどく賢いですね。