complicate
US /ˈkɑːm.plə.keɪt/
UK /ˈkɑːm.plə.keɪt/

1.
compliquer, rendre complexe
make (something) more difficult or confusing by causing it to be more complex.
:
•
The new regulations will only complicate matters.
Les nouvelles réglementations ne feront que compliquer les choses.
•
His sudden departure might complicate our plans.
Son départ soudain pourrait compliquer nos plans.