be as stubborn as a mule

US /bi æz ˈstʌbərn æz ə mjuːl/
UK /bi æz ˈstʌbərn æz ə mjuːl/
"be as stubborn as a mule" picture
1.

keras kepala seperti keledai, sangat keras kepala

to be very stubborn and unwilling to change one's mind or opinion

:
You can try to convince him, but he'll be as stubborn as a mule.
Kamu bisa mencoba meyakinkannya, tapi dia akan keras kepala seperti keledai.
My grandfather used to be as stubborn as a mule when it came to new technology.
Kakek saya dulu keras kepala seperti keledai dalam hal teknologi baru.