mo·​ron | \ ˈmȯr-ˌän How to pronounce moron (audio) \

Definition of moron

1 : a very stupid person They were acting like a bunch of morons.
2 dated, now offensive : a person affected with mild mental retardation

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Other Words from moron

moronic \ mə-​ˈrä-​nik How to pronounce moronic (audio) , mȯ-​ \ adjective
moronically \ mə-​ˈrä-​ni-​k(ə-​)lē How to pronounce moronically (audio) , mȯ-​ \ adverb
moronism \ ˈmȯr-​ˌä-​ˌni-​zəm How to pronounce moronism (audio) \ noun
moronity \ mə-​ˈrä-​nə-​tē How to pronounce moronity (audio) , mȯ-​ \ noun

Synonyms & Antonyms for moron


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], 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 moron in a Sentence

They were acting like a bunch of morons. I can't believe I did something so stupid. I feel like a complete moron.

First Known Use of moron

1910, in the meaning defined at sense 2

History and Etymology for moron

irregular from Greek mōros foolish, stupid

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More Definitions for moron



English Language Learners Definition of moron

informal : a very stupid or foolish person


mo·​ron | \ ˈmȯr-ˌän How to pronounce moron (audio) \

Kids Definition of moron

: a stupid or foolish person


mo·​ron | \ ˈmō(ə)r-ˌän, ˈmȯ(ə)r- How to pronounce moron (audio) \

Medical Definition of moron

dated, now offensive
: a person affected with mild mental retardation

Other Words from moron

moronic \ mə-​ˈrän-​ik, mȯ-​ How to pronounce moronic (audio) \ adjective, dated, now offensive

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mo·​ron | \ ˈmōr-ˌän How to pronounce moron (audio) \

Legal Definition of moron

: a person with a mild or moderate intellectual disability used formerly — see also idiot

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More from Merriam-Webster on moron

Rhyming Dictionary: Words that rhyme with moron

Thesaurus: All synonyms and antonyms for moron

Spanish Central: Translation of moron

Nglish: Translation of moron for Spanish Speakers

Britannica English: Translation of moron for Arabic Speakers Encyclopedia article about moron

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