1
: the head of a pin
2
: something very small or insignificant
3
: a very dull or stupid person : fool
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
Regarding the expressionless eyes, 500 black pins were sourced to find a pinhead the right size, with the team carefully measuring each one.
—
Alex Ritman, Variety, 9 Jan. 2025
Exposure to as little as a pinhead amount of ricin can cause death.
—Fox News, 7 Nov. 2024
To get some scale for the image, their dazzling red caps are just the size of a pinhead.
—New Atlas, 16 July 2024
Below this sieve is a fine-mesh sieve that captures fossil bits down to 0.02 inch in size (smaller than a pinhead).
—Kristi Curry Rogers, Scientific American, 1 Feb. 2024
See All Example Sentences for pinhead
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.
Alex Ritman, Variety, 9 Jan. 2025
Exposure to as little as a pinhead amount of ricin can cause death.
—Fox News, 7 Nov. 2024
To get some scale for the image, their dazzling red caps are just the size of a pinhead.
—New Atlas, 16 July 2024
Below this sieve is a fine-mesh sieve that captures fossil bits down to 0.02 inch in size (smaller than a pinhead).
—Kristi Curry Rogers, Scientific American, 1 Feb. 2024
See All Example Sentences for pinhead
Cite this Entry
“Pinhead.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pinhead. Accessed 1 Mar. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share