wrongly conceived, held, or done: a mistaken antagonism.
erroneous; incorrect; wrong: a mistaken answer.
having made a mistake; being in error.

Origin of mistaken

1590–1600; past participle of mistake; see -en3
Related formsmis·tak·en·ly, adverbmis·tak·en·ness, nounun·mis·tak·en, adjective

Synonyms for mistaken

1. inaccurate, misconceived.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for mistakenly

falsely, erroneously, badly, erringly

Examples from the Web for mistakenly

Contemporary Examples of mistakenly

Historical Examples of mistakenly

  • Others have thought, but mistakenly, that it was Collioure in Roussillon.

    The Phantom World

    Augustin Calmet

  • He knew also that she would tell him that, just as mistakenly, about the hero of every book he wrote.


    Leonard Merrick

  • Catamite, mistakenly read as khz on f. 112b (Mmoires ii, 82).

    The Bbur-nma in English

    Babur, Emperor of Hindustan

  • We sometimes, mistakenly, say that the English are not good losers.

  • We should not forget how confidently, and how mistakenly, his failure was predicted.

    Why We Punctuate

    William Livingston Klein

British Dictionary definitions for mistakenly



(usually predicative) wrong in opinion, judgment, etcshe is mistaken
arising from error in judgment, opinion, etca mistaken viewpoint
Derived Formsmistakenly, adverbmistakenness, 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 mistakenly



c.1600, "under misapprehension," past participle adjective from mistake (v.). Related: Mistakenly. Mistaken identity attested from 1865.

Online Etymology Dictionary, © 2010 Douglas Harper