1. disconcert - Noun
2. disconcert - Verb
To break up the harmonious progress of; to throw into disorder or confusion; as, the emperor disconcerted the plans of his enemy.
To confuse the faculties of; to disturb the composure of; to discompose; to abash.
Want of concert; disagreement.
Source: Webster's dictionaryThe constant attention of the young man confused her Source: Internet