disconcert

US /ˌdɪs.kənˈsɝːt/
UK /ˌdɪs.kənˈsɝːt/
"disconcert" picture
1.

disturb the composure of; unsettle.

:
•
The sudden change in his behavior disconcerted her.
•
He was disconcerted by the unexpected question.
:
unsettleperturbbotherflusterrattledisturbdiscomposeconfuseperplexbewilderdisorient