disconcerted

adjective

1. disturbed, as in one’s composure or self-possession; perturbed; ruffled: She was disconcerted by the sudden attack on her integrity.
2. bewildered or confused, as by something unexpected: The class was disconcerted by the instructor’s confusion.

verb (used with object)

1. to disturb the self-possession of; perturb; ruffle: Her angry reply disconcerted me completely.
2. to throw into disorder or confusion; disarrange: He changed his mind and disconcerted everybody’s plans.

adjective

1. perturbed, embarrassed, or confused

verb (tr)

1. to disturb the composure of
2. to frustrate or upset