The idiom “as stubborn as a mule” is a widely used expression to describe someone who is very determined or resistant to change. The comparison to a mule emphasizes extreme obstinacy, as mules are traditionally seen as animals that are difficult to persuade or control.


Meaning of “as stubborn as a mule

This idiom conveys the idea of someone who refuses to change their opinion, decision, or behavior, regardless of persuasion or logical reasoning.

Example:

“My husband is as stubborn as a mule.”

Example:

“Our cat is stubborn as a mule.”

Key characteristics

  • Refusal to compromise.
  • Unwillingness to listen to others.
  • A tendency to resist authority or guidance.

Origin of ”as stubborn as a mule

The expression originates from the behavior of mules, which are hybrids of donkeys and horses. Mules are known for their intelligence, but also for their unwillingness to do anything they perceive as dangerous or unnecessary. This cautious and independent nature earned them a reputation for being stubborn.


Connotations

  • Negative: Suggests inflexibility and unreasonableness.
  • Neutral: Sometimes viewed as a form of determination or strength, depending on the context.

Synonyms of ”as stubborn as a mule

Here are some alternative phrases with similar meanings:

As obstinate as a donkey

Example:

“Trying to change his mind is impossible; he’s as obstinate as a donkey.”

Set in their ways

Example:

“She’s so set in her ways that she won’t even consider new ideas.”


Examples of usage

Personal relationships

“No matter how much I try to convince him, my husband is as stubborn as a mule when it comes to trying new foods.”

Animals

“Our dog refuses to come inside when it rains—he’s stubborn as a mule.”

Workplace

“The manager is as stubborn as a mule about sticking to outdated policies.”


    The idiom “as stubborn as a mule” vividly illustrates a person’s extreme reluctance to change their mind or behavior. While often used negatively, it can also highlight determination or strong convictions in some contexts.

    Learn English