Dis·con·cert v. t. [imp. & p. p. Disconcerted; p. pr. & vb. n. Disconcerting.]
 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.


 disconcerting
      adj : causing an emotional disturbance; "his disconcerting habit
            of greeting friends ferociously and strangers
            charmingly"- Herb Caen; "an upsetting experience" [syn:
             upsetting]