An example of disconcert is for a person to upset her best friend by telling her secret to everyone.
- to frustrate (plans, etc.)
- to upset the composure of; embarrass; confuse
Origin of disconcertOld French desconcerter: see dis- and amp; concert
transitive verbdis·con·cert·ed, dis·con·cert·ing, dis·con·certs
- To cause to lose composure; embarrass or confuse: He was disconcerted by the teacher's angry tone. See Synonyms at embarrass.
- To frustrate (plans, for example) by throwing into disorder; disarrange.
Origin of disconcertObsolete French disconcerter, from Old French desconcerter : des-, dis- + concerter, to bring into agreement (from Old Italian concertare; see concert).
(third-person singular simple present disconcerts, present participle disconcerting, simple past and past participle disconcerted)
From Middle French desconcerter, from des- (“dis-”) + concerter (“to bring into agreement, organize”).