Meaning of “frustrated” - Learner’s Dictionary

frustrated

adjective uk us /frʌsˈtreɪtɪd/ US  /ˈfrʌstreɪtɪd/

annoyed because things are not happening in the way that you want, or in the way that they should:

I'm very frustrated at/with my lack of progress.

(Definition of “frustrated” from the Cambridge Learner’s Dictionary © Cambridge University Press)