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[dis-kuh n-surt] /ˌdɪs kənˈsɜrt/
verb (used with object)
to disturb the self-possession of; perturb; ruffle:
Her angry reply disconcerted me completely.
to throw into disorder or confusion; disarrange:
He changed his mind and disconcerted everybody's plans.
Origin of disconcert
obsolete French
From the obsolete French word disconcerter, dating back to 1680-90. See dis-1, concert
Related forms
disconcerted, adjective
disconcertion, disconcertment, noun
1. discompose, perplex, bewilder, abash, discomfit.
1. calm. 2. arrange.
Synonym Study
1. See confuse. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for disconcertion
Historical Examples
  • There was no disconcertion exhibited by the one thus challenged.

    Within the Law Marvin Dana
  • He showed no disconcertion whatever when so suddenly attacked.

    Shadow, the Mysterious Detective Police Captain Howard
  • Remembering the trace of disconcertion he had shown, she very much wished to know where Brooke had really been.

    A Damaged Reputation Harold Bindloss
  • Fortune, as she silently followed, experienced a sense of disconcertion rather than of elation.

    The Carpet from Bagdad

    Harold MacGrath
  • He did not quite like being called a baby, and frowned; but was at once touched by the disconcertion in her powdered face.


    John Galsworthy
  • She understood perfectly the hesitancy, but laughed without a trace of disconcertion.

    In the Name of Liberty

    Owen Johnson
British Dictionary definitions for disconcertion


verb (transitive)
to disturb the composure of
to frustrate or upset
Derived Forms
disconcertion, disconcertment, 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
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Word Origin and History for disconcertion



1680s, from Middle French disconcerter (Modern French déconcerter) "confused," from dis- "do the opposite of" (see dis-) + concerter (see concert). Related: Disconcerted; disconcerting; disconcertingly.

Online Etymology Dictionary, © 2010 Douglas Harper
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