discombobulated

/ˌdɪskəmˈbɑbjəleɪtɪd/
adjective
  1. Feeling confused, upset, or disorganized, especially because something unexpected happened.
    • She was so discombobulated by the news that she forgot to lock the door.
    • After the power outage, I felt completely discombobulated and couldn't find my keys.
    • The new student looked discombobulated on the first day of school.