disconcert
US /ˌdɪs.kənˈsɝːt/
UK /ˌdɪs.kənˈsɝːt/

1.
verontrusten, ontregelen, van streek maken
disturb the composure of; unsettle.
:
•
The sudden change in his behavior disconcerted her.
De plotselinge verandering in zijn gedrag verontrustte haar.
•
He was disconcerted by the unexpected question.
Hij was verontrust door de onverwachte vraag.