fat·​head | \ˈfat-ˌhed \

Definition of fathead 

: a stupid person

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Other Words from fathead

fatheaded \ ˈfat-​ˈhe-​dəd \ adjective
fatheadedly adverb
fatheadedness noun

Synonyms & Antonyms for fathead


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, 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, pinhead, 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 fathead in a Sentence

Don't be such a fathead! so who's the fathead who messed around with my movie collection?

Recent Examples on the Web

The lines were baited with spawn sacs, shiner minnows or large fatheads. Paul A. Smith, Milwaukee Journal Sentinel, "Smith: Wisconsin's Lake Michigan harbors host world-class ice fishing for trout," 13 Jan. 2018 If stocked into a lake with fatheads or other minnows, the trout grow more slowly, to about eight inches in fall. Paul A. Smith, Milwaukee Journal Sentinel, "Smith: Trout ponds of Washburn County offer solitude and splendor," 16 Dec. 2017

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

First Known Use of fathead

1842, in the meaning defined above

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Dictionary Entries near fathead

fat farm




fathead minnow

fat hen


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Time Traveler for fathead

The first known use of fathead was in 1842

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English Language Learners Definition of fathead

: a stupid person

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