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  1. given to or characterized by boasting.
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Origin of boastful

First recorded in 1275–1325, boastful is from the Middle English word bostful. See boast1, -ful
Related formsboast·ful·ly, adverbboast·ful·ness, nouno·ver·boast·ful, adjectiveo·ver·boast·ful·ly, adverbo·ver·boast·ful·ness, nounun·boast·ful, adjectiveun·boast·ful·ly, adverbun·boast·ful·ness, noun


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for boastfully

Historical Examples

  • A voice somewhere behind him said boastfully, "He's game for my bag."

    A Set of Six

    Joseph Conrad

  • Long had the British boastfully claimed the title of monarch of the seas.

  • "There's no fear of that, Mrs. Gray," replied Miriam boastfully.

  • "I'd save it towards a motorcycle," declared Billiard boastfully.

    Tabitha's Vacation

    Ruth Alberta Brown

  • Boastfully, they sent us newsreels of their entries into Portland and Seattle.

British Dictionary definitions for boastfully


  1. tending to boast; characterized by boasting
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Derived Formsboastfully, adverbboastfulness, noun
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

Word Origin and History for boastfully



early 14c., from boast (n.) + -ful. Related: Boastfully; boastfulness.

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Online Etymology Dictionary, © 2010 Douglas Harper