pinhead

noun

pin·​head ˈpin-ˌhed How to pronounce pinhead (audio)
Synonyms of pinheadnext
1
: the head of a pin
2
: something very small or insignificant
3
: a very dull or stupid person : fool

Synonyms of pinhead

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Examples of pinhead in a Sentence

The insect is the size of a pinhead. Her boss is a real pinhead.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Bed bug eggs are white and about the size of a pinhead. — Arricca Elin Sansone, Southern Living, 23 Jan. 2026 To check yourself for fleas, look for tiny brown bugs that are the size of a pinhead. — Carrie Madormo, Health, 10 Sep. 2025 Tick larvae, which are translucent and the size of a pinhead, can also bite. — Karissa Waddick, USA Today, 29 Aug. 2025 Ditto for the version dotted in micro round studs, which looked like pinheads. — Sandra Salibian, Footwear News, 23 June 2025 See All Example Sentences for pinhead

Word History

First Known Use

1593, in the meaning defined at sense 1

Time Traveler
The first known use of pinhead was in 1593

Rhymes for pinhead

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Browse Nearby Words

pinguitude
pinhead
pinheaded
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Cite this Entry

“Pinhead.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pinhead. Accessed 7 Jul. 2026.

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Kids Definition

pinhead

noun
pin·​head ˈpin-ˌhed How to pronounce pinhead (audio)
1
: the head of a pin
2
: a very dull or stupid person : fool
Last Updated: - Updated example sentences
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