Meaning of the word "be as stubborn as a mule" in English

What does "be as stubborn as a mule" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

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

Idiom

1.

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

Example:
You can try to convince him, but he'll be as stubborn as a mule.
My grandfather used to be as stubborn as a mule when it came to new technology.
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