Idiom B2 Informal

A leopard can't change its spots

A person cannot change their essential nature or character, especially a bad one

Meaning

A leopard can't change its spots — A person cannot change their essential nature or character, especially a bad one. The idiom is used to say that someone will keep behaving as they always have, no matter what they promise.

Origin & History

This idiom is biblical in origin. It comes from the Book of Jeremiah in the Old Testament, chapter 13 verse 23, which asks: "Can the Ethiopian change his skin, or the leopard his spots?" The question is rhetorical, and the expected answer is no. The verse uses the unchangeable markings of the leopard as an image of a nature that cannot be reformed.

From that scriptural source the saying passed into everyday English, where it is now used of people rather than animals. It usually carries a note of doubt or warning, suggesting that a person's deep-rooted habits and faults will resurface however much they claim to have changed.

Example Sentences

SentenceContext
He says he's reformed, but a leopard can't change its spots.Doubting a promise
She was rude as a child and is rude now — a leopard can't change its spots.Describing character
I wouldn't trust him with the money; a leopard can't change its spots.A word of warning
The manager vowed to be fairer, but a leopard can't change its spots.Workplace scepticism
Old friends laughed and said a leopard can't change its spots.Familiar habits
Don't expect him to be on time — a leopard can't change its spots.Predicting behaviour

How to Use It

This idiom is informal to neutral and works well in conversation, opinion writing, and journalism. Use it to express doubt that a person has truly changed, usually their faults or bad habits. It often carries a slightly cynical tone, so reserve it for situations where you genuinely doubt that someone's nature will alter.

Common Mistakes

Mistakes to Avoid

A leopard can't change its stripes.

A leopard can't change its spots. — A leopard has 'spots', not 'stripes'.

A leopard can't change it's spots.

A leopard can't change its spots. — Use the possessive 'its' with no apostrophe.

A leopard doesn't change his spots.

A leopard can't change its spots. — Keep 'can't' and 'its'; the phrase is fixed.

Similar Idioms

Old habits die hard You can't teach an old dog new tricks Once a thief always a thief A zebra can't change its stripes All Idioms →

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Frequently Asked Questions

What does "A leopard can't change its spots" mean?
"A leopard can't change its spots" means that a person cannot change their essential nature or character, especially a bad one. It is used to say that someone will go on behaving as they always have.
Where does the idiom "A leopard can't change its spots" come from?
The idiom is biblical, coming from the Book of Jeremiah in the Old Testament, chapter 13 verse 23: 'Can the Ethiopian change his skin, or the leopard his spots?'. The rhetorical question implies that deep-rooted nature cannot be altered.
Can you give an example of "A leopard can't change its spots" in a sentence?
Here is an example: "He promised to be more honest, but a leopard can't change its spots and soon he was bending the rules again." — used to say someone's true nature stays the same.
Is "A leopard can't change its spots" formal or informal?
It is informal to neutral. It is common in everyday conversation and casual writing, and appears in journalism, but it is best avoided in very formal academic writing.
What CEFR level is "A leopard can't change its spots"?
This idiom is typically taught at B2 level. It is an upper-intermediate proverb that appears often in spoken English and informal writing when talking about character and habits.
What are common mistakes with "A leopard can't change its spots"?
A common mistake is changing the noun, such as saying 'a leopard can't change its stripes'. Another is using the wrong possessive, such as 'its' with an apostrophe. The fixed form is 'a leopard can't change its spots'.
What idioms are similar to "A leopard can't change its spots"?
Similar idioms include: Old habits die hard, You can't teach an old dog new tricks, Once a thief always a thief, A zebra can't change its stripes. These all share the idea that nature or habit is hard to change.
How do I practise idioms like "A leopard can't change its spots"?
LexFizz's Flash Cards and Flip Tiles exercises are great for practising English idioms. Try writing your own example sentences using the idiom in context, and listen for it in films, podcasts, and conversations.
Can "A leopard can't change its spots" be used in writing?
Yes, in informal writing, opinion pieces, and journalism. Avoid it in very formal academic writing unless you are quoting or discussing the idiom itself. In everyday writing it is a vivid and natural choice.
Does "A leopard can't change its spots" have the same meaning in British and American English?
Yes, "A leopard can't change its spots" is understood in both British and American English with the same meaning: a person cannot change their basic nature. The proverb is widely recognised across all major varieties of English.