from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To upset the self-possession of; ruffle. See Synonyms at embarrass.
- transitive v. To frustrate (plans, for example) by throwing into disorder; disarrange.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To upset the composure of
- v. To bring into confusion
- v. To frustrate, make go wrong
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To break up the harmonious progress of; to throw into disorder or confusion.
- transitive v. To confuse the faculties of; to disturb the composure of; to discompose; to abash.
- n. Want of concert; disagreement.
from The Century Dictionary and Cyclopedia
- To throw into disorder or confusion; come in the way of; disarrange; obstruct.
- To unsettle the mind of; discompose; disturb the self-possession of; confuse.
- Synonyms To ruffle. See list under discompose.
- n. Disunion; disagreement; disconcertment.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. cause to lose one's composure
- v. cause to feel embarrassment
Obsolete French disconcerter, from Old French desconcerter : des-, dis- + concerter, to bring into agreement (from Old Italian concertare; see concert).(American Heritage® Dictionary of the English Language, Fourth Edition)
From French disconcerter, an alteration of Middle French desconcerter, itself from des- 'dis' (from Middle French dis-)+ concerter 'to bring into agreement, organize' (Wiktionary)