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n. Informal
A stupid person; a fool.

[From the proverbial stupidity of sheep.]

mut′ton·head′ed adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


slang a stupid or ignorant person; fool
ˈmuttonˌheaded adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈmʌt nˌhɛd)

n. Informal.
a slow-witted, foolish person; dolt.
mut′ton•head`ed, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.muttonhead - a stupid personmuttonhead - a stupid person; these words are used to express a low opinion of someone's intelligence
dolt, dullard, pillock, poor fish, pudden-head, pudding head, stupe, stupid, stupid person - a person who is not very bright; "The economy, stupid!"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
This action by Trans-Pennine may be a penny-pinching decision, but I can only describe it as a muttonheaded lack of joined-up thinking, a disgusting lack of interest in many potential customers and a ridiculous loss of a publicity opportunity.
Well, they say to themselves 'He may be a muttonheaded old mugwump, but he is probably harmless"' - Foreign Secretary BORIS JOHNSON.
He may think it funny to describe Jeremy Corbyn as a "muttonheaded mugwump", but surely blindly following US warmongers into more illegal wars combines the worst features of sheep and goats.