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See more synonyms for dumbo on Thesaurus.com
noun, plural dum·bos.
  1. a stupid person: a class full of dumbos.
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  1. stupid or foolish: What a dumbo idea!
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Origin of dumbo

probably earlier than 1955–60; dumb + -o
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for dumbo

blockhead, clod, dolt, dullard, dumbbell, dunce, fool, idiot, ignoramus, imbecile, moron, nitwit, numskull, oaf, simpleton, dodo, dummkopf, halfwit, knothead, knucklehead

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Contemporary Examples of dumbo

British Dictionary definitions for dumbo


noun plural -bos
  1. slang a slow-witted unintelligent person
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Word Origin for dumbo

C20: after the flying elephant in Dumbo, the Walt Disney cartoon released in 1941
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012