See more synonyms for mistrust on Thesaurus.com
verb (used with object)
  1. to regard with mistrust, suspicion, or doubt; distrust.
  2. to surmise.
verb (used without object)
  1. to be distrustful.

Origin of mistrust

1350–1400; Middle English mistrusten (v.), mistrust (noun). See mis-1, trust
Related formsmis·trust·er, nounmis·trust·ing·ly, adverbself-mis·trust, nounun·mis·trust·ed, adjectiveun·mis·trust·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for mistrust


  1. to have doubts or suspicions about (someone or something)
  1. distrust
Derived Formsmistruster, nounmistrustful, adjectivemistrustfully, adverbmistrustfulness, 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 mistrust

late 14c.; see mis- (1) + trust (n.).


late 14c., from mis- (1) + trust (v.). Related: Mistrusted; mistrusting.

Online Etymology Dictionary, © 2010 Douglas Harper