a needle in a haystack
Meaning
Something extremely hard to find because it’s hidden among many similar things; a near-impossible search.
Origin
From the literal image of trying to find a small metal needle in a large pile of hay—an almost impossible task. The metaphor is recorded in English from at least the 16th century.
Notes
Emphasizes extreme difficulty of finding something among many similar items. Neutral to mildly exasperated tone; common in speech and writing. Implies “possible but very unlikely/tedious.”
Examples
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Finding the right file on this old server is like looking for a needle in a haystack.
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Without a name or photo, identifying the suspect was a needle in a haystack for the detectives.
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I tried to locate that one comment in the thread, but it was a needle in a haystack.
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In a city this big, running into her by chance would be a needle in a haystack.
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Searching for a matching screw in that mixed box felt like a needle in a haystack.
Grammar & Usage Notes
Usually used as a noun phrase: “like a needle in a haystack” after be/seem/feel, or “It’s a needle in a haystack.” Article “a” is fixed; plural possible: “needles in a haystack.”
Synonyms
- like looking for a needle in a haystack
- almost impossible to find
- hard to track down
- a long shot
Antonyms
- easy to find
- in plain sight
- a sure thing