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a wolf in sheep's clothing

ə wʊlf ɪn ʃiːps ˈkloʊðɪŋ

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Literally:
A wolf disguised as a sheep

What does "a wolf in sheep's clothing" mean?

A dangerous person disguised as harmless or friendly

Examples

  • The friendly investor turned out to be a wolf in sheep's clothing.
  • Don't be fooled by his charm — he's a wolf in sheep's clothing.
  • The seemingly generous loan offer was a wolf in sheep's clothing.

Origin

From the Bible, Matthew 7:15, and Aesop's fables.

How to use it

Widely used to warn about deceptive people or offers.

Similar expressions

impostor
fraud
Trojan horse
snake in the grass

Opposites

what you see is what you get
genuine article

Related idioms

  • kill two birds with one stone

    To accomplish two goals with a single action

  • let the cat out of the bag

    To reveal a secret accidentally

  • elephant in the room

    An obvious problem or issue that everyone is aware of but no one wants to discuss

  • don't count your chickens before they hatch

    Don't assume success before it actually happens

  • hold your horses

    To wait and be patient

  • fish out of water

    Someone who feels awkward or uncomfortable in a particular situation

Use it in a practice answer

Try "a wolf in sheep's clothing" in a CELPIP-style Speaking or Writing task. The AI feedback tells you whether your word choice worked.

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