frustrating
US /ˈfrʌs.treɪ.t̬ɪŋ/
UK /ˈfrʌs.treɪ.t̬ɪŋ/

1.
frustrierend, ärgerlich
causing annoyance or upset because of an inability to change or achieve something
:
•
It's frustrating when you can't make progress.
Es ist frustrierend, wenn man keinen Fortschritt machen kann.
•
The slow internet connection is very frustrating.
Die langsame Internetverbindung ist sehr frustrierend.