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[bluhn-der] /ˈblʌn dər/
a gross, stupid, or careless mistake:
That's your second blunder this morning.
verb (used without object)
to move or act blindly, stupidly, or without direction or steady guidance:
Without my glasses I blundered into the wrong room.
to make a gross or stupid mistake, especially through carelessness or mental confusion:
Just pray that he doesn't blunder again and get the names wrong.
verb (used with object)
to bungle; botch:
Several of the accounts were blundered by that new assistant.
to utter thoughtlessly; blurt out:
He blundered his surprise at their winning the award.
Origin of blunder
Norwegian dialect
1350-1400; Middle English blunderen, blondren, (v.) < Old Norse blunda shut one's eyes, nap; compare Norwegian dialect blundra
Related forms
blunderer, noun
blunderingly, adverb
nonblundering, adjective, noun
nonblunderingly, adverb
outblunder, verb (used with object)
superblunder, noun
unblundering, adjective
1. error. See mistake. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for blundered
Contemporary Examples
Historical Examples
  • But for Steve Jack would have blundered into one of the Indian sentries.

    Indian and Scout F. S. Brereton
  • To reach it now was hopeless; I should have blundered straight into the elephant.

    Maiwa's Revenge H. Rider Haggard
  • I blundered—God knows how—into attributing the tremors of the lovers to "the Woods of Madeira," by which they were surrounded.

  • But in my error I had blundered, overbold, and I tried to explain confusedly.

    Marjorie Justin Huntly McCarthy
  • In each of the four places where I lived I blundered into doing things which I would rather not have recalled.

    History of Linn County Iowa Luther A. Brewer
  • He'll want to see you, too, now that you've blundered into his territory.

    The Boy Scout Automobilists Robert Maitland
British Dictionary definitions for blundered


a stupid or clumsy mistake
a foolish tactless remark
verb (mainly intransitive)
to make stupid or clumsy mistakes
to make foolish tactless remarks
often foll by about, into, etc. to act clumsily; stumble: he blundered into a situation he knew nothing about
(transitive) to mismanage; botch
Derived Forms
blunderer, noun
blundering, noun, adjective
blunderingly, adverb
Word Origin
C14: of Scandinavian origin; compare Old Norse blunda to close one's eyes, Norwegian dialect blundra; see blind
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
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Word Origin and History for blundered



mid-14c., "to stumble about blindly," from a Scandinavian source akin to Old Norse blundra "shut one's eyes," from PIE root *bhlendh- (see blind). Meaning "make a stupid mistake" is first recorded 1711. Related: Blundered; blundering.


mid-14c., apparently from blunder (v.), though of about the same age.

Online Etymology Dictionary, © 2010 Douglas Harper
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