Dis′con‐cert″ (?), v. t. [imp. & p. p.Disconcerted; p. pr. & vb. n.Disconcerting.] [Pref. dis- + concert: cf. OF. desconcerter, F. déconcerter.] 1. To break up the harmonious progress of; to throw into disorder or confusion; as, the emperor disconcerted the plans of his enemy.
2. To confuse the faculties of; to disturb the composure of; to discompose; to abash.
The embrace disconcerted the daughter-in-law somewhat, as the caresses of old gentlemen unshorn and perfumed with tobacco might well do. Thackeray.
Syn. — To discompose; derange; ruffle; confuse; disturb; defeat; frustrate.