to don't believe a word of
- idiom
- After what happened last time, I just don't believe a word of what he says.
Examples
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"Do not believe a word of that."
Fiction book (1990) -
- I don't believe a word of it.
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- And even those who do not believe a word of it would just as soon have nothing to do with him.
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Unfortunately, I don't believe a word of it.
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And I don't believe a word of it.
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But you don't believe a word of it.
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Now, I don't believe a word of that.
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Because I don't believe a word of it.
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You didn't believe a word of it, did you?
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No, I mean I literally don't believe a word of it.
Synonyms
To think that someone or something cannot be relied on
To not accept that something is true
To not trust someone or something
Antonyms
How Believable
Surface Forms
Morphology
don't + believe + a + word + of
The meaning 'to not believe anything someone says' is directly and compositionally derived from the negator 'don't' + 'believe' and the quantifying phrase 'a word of' (i.e. not believing any word/part of their speech). This pattern has clear parallels in many languages (e.g. Spanish 'no creer ni una palabra', French 'ne pas croire un mot'), so a B1 learner who knows the constituents will very likely understand it.
Etymology
Don't believe a word of comes from the image of refusing to accept even a single word someone says, as if you throw each word away because you think it is false. So it means 'to not believe anything that someone says'.