noun
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the head of a pin
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something very small
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informal a stupid or contemptible person
Etymology
Origin of pinhead
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
With a brain the size of a pinhead, insects perform fantastic navigational feats.
From Science Daily • Feb. 12, 2024
I’m a mere critic, not a network pinhead, as David Letterman referred to executives who made these kinds of decisions, but that doesn’t mean I can’t dream up cockamamie ideas.
From New York Times • Mar. 22, 2023
The Birmingham artist has previously produced what is thought to be the world's tiniest nativity scene and a picture of the Queen on a pinhead.
From BBC • Jan. 31, 2023
Ricin, found naturally in castor beans, can cause death within 36 to 72 hours from exposure to an amount as small as a pinhead.
From Reuters • Jan. 8, 2023
The pill was the size of a pinhead, and it had a pale brownish color.
From "The Hot Zone" by Richard Preston
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.