difficult
US /ˈdɪf.ə.kəlt/
UK /ˈdɪf.ə.kəlt/

1.
trudny, skomplikowany
needing much effort or skill to accomplish, deal with, or understand.
:
•
The exam questions were very difficult.
Pytania egzaminacyjne były bardzo trudne.
•
It's a difficult decision to make.
To trudna decyzja do podjęcia.
2.
problematyczny, kłopotliwy
full of problems; problematic.
:
•
They are going through a very difficult period.
Przechodzą przez bardzo trudny okres.
•
He has a difficult personality.
Ma trudny charakter.