This is the 18850th most frequent Korean word.
심각하다
"심각하다" means "to be serious or grave."
The word '심각하다' is used to describe the intensity or severity of an issue.
그 문제는 매우 심각하다.
That problem is very serious.
Here, '심각하다' indicates the growing seriousness of a current or anticipated situation.
상황이 심각해지기 전에 해결합시다.
Let's resolve the situation before it becomes critical.
In this sentence, '심각하다' is applied to describe the demeanor portrayed by someone's facial expression.