not worth a brass farthing
- idiom
- Archaic
- The jewels turned out to be fake and not worth a brass farthing.
Examples
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Your promises are not worth a brass farthing after so many disappointments.
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That idea is not worth a brass farthing!
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He realized the guarantee was not worth a brass farthing when the product broke.
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This watch is not worth a brass farthing!
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The old car is not worth a brass farthing since it's beyond repair.
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Her excuses were not worth a brass farthing after she missed the deadline again.
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This outdated technology is not worth a brass farthing in today's market.
Synonyms
Has no value or use
Something of little or no worth
Having little or no value
Of no value or use
Has no value and is useless to anyone
Not useful and having little value
A thing that has no value or use
Something of very little or no value
No money at all
It has very little value
Antonyms
How Worthless
- Archaic
Surface Forms
Morphology
not + worth + a + brass + farthing
The meaning 'completely worthless' is directly derivable from the parts: 'not worth' (having no value) plus 'brass farthing' (a very small/cheap coin), so it literally means 'not worth even a tiny coin.' Although the phrase is somewhat archaic, the monetary-minimum-value logic is compositional and cross-linguistically familiar, so a B1 learner who knows the constituent words would understand it.
Etymology
Not worth a brass farthing may come from old British coins: a farthing was a very small coin and a brass farthing was even cheaper, so it had almost no value. That's why the phrase means 'completely worthless'.