[dis-kuh n-sur-ting]
See more synonyms for disconcerting on Thesaurus.com
  1. disturbing to one's composure or self-possession; upsetting, discomfiting.
  2. confusing, usually in the face of something totally unexpected; perplexing.
Related formsdis·con·cert·ing·ly, adverbdis·con·cert·ing·ness, noun


verb (used with object)
  1. to disturb the self-possession of; perturb; ruffle: Her angry reply disconcerted me completely.
  2. to throw into disorder or confusion; disarrange: He changed his mind and disconcerted everybody's plans.

Origin of disconcert

From the obsolete French word disconcerter, dating back to 1680–90. See dis-1, concert
Related formsdis·con·cert·ed, adjectivedis·con·cer·tion, dis·con·cert·ment, noun

Synonyms for disconcert

See more synonyms for on Thesaurus.com

Synonym study

1. See confuse.

Antonyms for disconcert

1. calm. 2. arrange.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for disconcerting

Contemporary Examples of disconcerting

Historical Examples of disconcerting

  • "I advise you to do so, monsieur," was the disconcerting reply.


    Rafael Sabatini

  • Really, Aline, you have a trick of asking the most disconcerting and improper questions.


    Rafael Sabatini

  • The fact that Luga was with the rebels gave rise to disconcerting gossip.


    James Huneker

  • Esther did not seem to him a disturbing force, only a disconcerting one.

    The Prisoner

    Alice Brown

  • This was disconcerting, but she could not drive out the feeling.

    The Greater Power

    Harold Bindloss

British Dictionary definitions for disconcerting


  1. causing a feeling of disturbance, embarrassment, or confusion; perturbing; worrying
Derived Formsdisconcertingly, adverb


verb (tr)
  1. to disturb the composure of
  2. to frustrate or upset
Derived Formsdisconcertion or 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

Word Origin and History for disconcerting



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