discombobulate
/ˌdɪskəmˈbɑbjəleɪt/
verb
- To confuse or upset someone, often by surprising them or making things complicated.
- The sudden change in schedule completely discombobulated the team.
- The loud noise discombobulated the speaker, and she forgot her next point.
- Trying to assemble the furniture without instructions will discombobulate anyone.