disconcerted
🇺🇸
/ˌdɪskənˈsɜːrtɪd/
🇬🇧
/ˌdɪskənˈsɜːtɪd/
uncomfortable or upset because of an unexpected event or situation
She was disconcerted by the sudden change in plans.
彼女は計画の突然の変更に戸惑った。