[ bluhn-der ]
/ ˈblʌn dər /
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See synonyms for: blunder / blundering / blunderer / blunderingly on Thesaurus.com

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.
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Origin of blunder

First recorded in 1350–1400; Middle English blunderen, blondren (verb), from Old Norse blunda “to shut one's eyes, nap”; compare Norwegian dialect blundra

synonym study for blunder

1. See mistake.


Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use blunder in a sentence

British Dictionary definitions for blunder

/ (ˈblʌndə) /

a stupid or clumsy mistake
a foolish tactless remark
verb (mainly intr)
to make stupid or clumsy mistakes
to make foolish tactless remarks
(often foll by about, into, etc) to act clumsily; stumblehe blundered into a situation he knew nothing about
(tr) to mismanage; botch

Derived forms of blunder

blunderer, nounblundering, noun, adjectiveblunderingly, adverb

Word Origin for blunder

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