be no fool
US /bi noʊ fuːl/
UK /bi noʊ fuːl/

1.
bukan orang bodoh, tidak mudah ditipu
to be intelligent and not easily deceived
:
•
You can try to trick him, but he's no fool.
Anda boleh cuba menipunya, tetapi dia bukan orang bodoh.
•
She may seem quiet, but she's no fool when it comes to business.
Dia mungkin kelihatan senyap, tetapi dia bukan orang bodoh dalam hal perniagaan.