complicated

US /ˈkɑːm.plə.keɪ.t̬ɪd/
UK /ˈkɑːm.plə.keɪ.t̬ɪd/
"complicated" picture
1.

involving many different and confusing aspects

:
The instructions were too complicated for me to follow.
It's a very complicated issue with no easy solution.
2.

difficult to understand or explain

:
The plot of the movie was too complicated for me to follow.
His explanation was so complicated that nobody understood it.