frustrating; feeling impatient or vexed because things are not progressing as hoped or expected.
言いたいことがうまく伝わらず、もどかしい気持ちだ。
I feel frustrated because I can't express what I want to say well.
解決の糸口が見つからず、もどかしい日々が続いた。
We went through frustrating days without finding a lead to a solution.
新しいシステムの反応が遅くて、とてももどかしい。
The new system responds slowly—it's really frustrating.
試合で決め手を外してしまい、もどかしかった。
I missed the decisive move in the match and felt frustrated.