(영어로 얘기할 때) 답답하다: It’s so frustrating!
Not being able to communicate, it’s so frustraitng.

(방이 너무 좁아) 답답하다: It’s really stuffy in here.

(이 상황이) 억울해요: This is so unfair!

(x) I feel unfair
(o) I feel that his decision was unfair.

I feel (like I’ve beeen) unfairly treated.