expression, ichidan verb
feel anxious; worry; be uneasy
Describes a state of mental unease or worry, often about an uncertain outcome or situation. The subject is typically the person feeling anxious, marked with が.
試験の結果が気がもめる。
I'm anxious about the exam results.
彼は何も言わないので、気がもめる
He doesn't say anything, so I get worried.