disconcert

verb

dis·​con·​cert ˌdis-kən-ˈsərt 

disconcerted; disconcerting; disconcerts

transitive verb

1

: to throw into confusion

disconcerting their plans

2

: to disturb the composure of

were disconcerted by his tone of voice

disconcerting adjective

disconcertingly

ˌdis-kən-ˈsər-tiŋ-lē 

adverb

disconcertment

ˌdis-kən-ˈsərt-mənt 

noun

Synonyms of disconcert

• embarrass
• confuse
• fluster
• rattle

Choose the Right Synonym for disconcert

embarrass, discomfit, abash, disconcert, rattle mean to distress by confusing or confounding.

embarrass implies some influence that impedes thought, speech, or action.

the question embarrassed her so much she couldn't answer

discomfit implies a hampering or frustrating accompanied by confusion.

hecklers discomfited the speaker

abash presupposes some initial self-confidence that receives a sudden check, producing shyness, shame, or a feeling of inferiority.

abashed by her swift and cutting retort

disconcert implies an upsetting of equanimity or assurance producing uncertainty or hesitancy.

disconcerted by finding so many in attendance

rattle implies an agitation that impairs thought and judgment.

rattled by all the television cameras

Examples of disconcert in a Sentence

News of his criminal past has disconcerted even his admirers.

we were disconcerted by the unexpected changes to the program

Recent Examples on the Web

About 20 miles southwest of Indianapolis, Mooresville residents report finding dirty water filters turning a disconcerting brown. —Karl Schneider, IndyStar, 31 Mar. 2026

That alone would be disconcerting, but that the line (dubbed the Petrova Line, after the scientist who discovered it) seems to be linked to a new, gradual dimming of the sun? —Kate Erbland, IndieWire, 10 Mar. 2026

There’s a lot of disconcerting news about AI in journalism lately. —Theresa Gaffney, STAT, 5 Mar. 2026

Golden Steer wet-ages its meat, which softens the fibers, perhaps too much: my sixteen-ounce Shorthorn (the menu’s term for a New York strip) was as yielding as a filet mignon—disconcerting, not delightful—and, upon slicing, left a puddle of diluted jus on the plate. —Helen Rosner, New Yorker, 1 Mar. 2026

Word History

Etymology

obsolete French disconcerter, alteration of Middle French desconcerter, from des- dis- + concerter to concert

First Known Use

1632, in the meaning defined at sense 1

Rhymes for disconcert

• controvert
• extrovert
• introvert
• reassert
• undershirt
• alert
• assert
• avert
• dessert
• divert
• evert
• exert

Kids Definition

disconcert

verb

dis·​con·​cert ˌdis-kən-ˈsərt 

1

: to disturb the arrangement of : upset

the unexpected event disconcerted their plans

2

: to disturb the self-control of

your frank stare disconcerted me

disconcertingly

-iŋ-lē 

adverb