noun (1)
dum·​dum | \ ˈdəm-ˌdəm How to pronounce dumdum (audio) \

Definition of dumdum

 (Entry 1 of 2)

: a bullet (such as one with a hollow point) that expands more than usual upon hitting an object


noun (2)
\ ˈdəm-ˌdəm How to pronounce dum-dum (audio) \

Definition of dum-dum (Entry 2 of 2)

: a stupid person : dummy

Synonyms & Antonyms for dumdum

Synonyms: Noun (2)

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, 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, pinhead, prat [British], ratbag [chiefly Australian], saphead, schlub (also shlub) [slang], schnook [slang], simpleton, stock, stupe, stupid, thickhead, turkey, woodenhead, yahoo, yo-yo

Antonyms: Noun (2)

brain, genius

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First Known Use of dumdum

Noun (1)

circa 1889, in the meaning defined above

Noun (2)

1928, in the meaning defined above

History and Etymology for dumdum

Noun (1)

Dum Dum, arsenal near Calcutta, India

Noun (2)

reduplication of dumb entry 1

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The first known use of dumdum was circa 1889

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English Language Learners Definition of dumdum

: a bullet that expands or explodes when it hits an object in order to cause greater damage

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Rhyming Dictionary: Words that rhyme with dumdum

Britannica.com: Encyclopedia article about dumdum

Comments on dumdum

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readily or continually undergoing change

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