pin·​head | \ ˈpin-ˌhed How to pronounce pinhead (audio) \

Definition of pinhead

1 : the head of a pin
2 : something very small or insignificant
3 : a very dull or stupid person : fool

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Synonyms & Antonyms for pinhead


airhead, birdbrain, blockhead, bonehead, bubblehead, chowderhead, chucklehead, clodpoll (or clodpole), clot [British], cluck, clunk, cretin, cuddy (or cuddie) [British dialect], deadhead, dim bulb [slang], dimwit, dip, dodo, dolt, donkey, doofus [slang], dope, dork [slang], dullard, dum-dum, dumbbell, dumbhead, dummkopf, dummy, dunce, dunderhead, fathead, gander, golem, goof, goon, half-wit, hammerhead, hardhead, idiot, ignoramus, imbecile, jackass, know-nothing, knucklehead, lamebrain, loggerhead [chiefly dialect], loon, lump, lunkhead, meathead, mome [archaic], moron, mug [chiefly British], mutt, natural, nimrod [slang], nincompoop, ninny, ninnyhammer, nit [chiefly British], nitwit, noddy, noodle, numskull (or numbskull), oaf, prat [British], ratbag [chiefly Australian], saphead, schlub (also shlub) [slang], schnook [slang], simpleton, stock, stupe, stupid, thickhead, turkey, woodenhead, yahoo, yo-yo


brain, genius

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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

The organoids grew into balls about the size of a pinhead, each containing hundreds of thousands of cells in a variety of types, each type producing the same chemicals and electrical signals as those cells do in our own brains. New York Times, "Organoids Are Not Brains. How Are They Making Brain Waves?," 29 Aug. 2019 The company built a robot that fires a laser to open a hole in the shell much smaller than a pinhead. Gretchen Vogel, Science | AAAS, "‘Ethical’ eggs could save male chicks from mass slaughter," 14 Aug. 2019 Nits are the size of a pinhead, and appear whitish or yellow. Mariko Zapf, Good Housekeeping, "This 3-Step Natural Head Lice Remedy Works For My Family Every Time," 15 Aug. 2017 If the Sun's the size of a soccer ball, then the Earth is a tiny pinhead. John Wenz, Popular Mechanics, "Video Brilliantly Demonstrates How Far Away a Possible Ninth Planet Would Be," 16 Mar. 2016 This isn't like the monologues Kimmel delivered during the health care repeal efforts, with explanatory skits and threats to pound hypocritical Fox News pinheads. Luke Darby, GQ, "Jimmy Kimmel Says the NRA Has Republicans' Balls in a Money Clip," 4 Oct. 2017 Taft calls Teddy a dictator; Teddy calls Taft a pinhead. Philip Galanes, New York Times, "Doris Kearns Goodwin," 29 Oct. 2016 Twitter Facebook − + dmart • 2 months ago These pinheads are charged with teaching our children critical thinking and understanding issues/topics through healthy debate. Roxana Kopetman, The Mercury News, "Student videotaping California college instructor’s anti-Trump comments spurs proposed whistleblower law," 25 Apr. 2017 Alumni protest that pinhead reporters don’t know the whole story, that these coaches and presidents and chancellors are princely men. Michael Powell, New York Times, "At Baylor, Charity Toward Kenneth Starr Follows Outrage," 26 May 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pinhead.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pinhead

1593, in the meaning defined at sense 1

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Dictionary Entries near pinhead






pin hinge


Statistics for pinhead

Last Updated

19 Sep 2019

Look-up Popularity

Time Traveler for pinhead

The first known use of pinhead was in 1593

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More Definitions for pinhead



English Language Learners Definition of pinhead

: the rounded end of a pin
US, informal : a stupid or foolish person

More from Merriam-Webster on pinhead

Rhyming Dictionary: Words that rhyme with pinhead

Thesaurus: All synonyms and antonyms for pinhead

Comments on pinhead

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fear of the number 13

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