flummox
🇺🇸
/ˈflʌməks/
🇬🇧
/ˈflʌməks/
to make someone unable to think clearly or respond effectively because they are surprised or confused
The sudden change of plans completely flummoxed him, and he didn't know how to react.
계획의 갑작스러운 변경으로 그가 완전히 혼란스러워하고 어떻게 반응해야 할지 몰랐다.