This is the 18669th most frequent Korean word.
신비로운
Mysterious.
Here, '신비로운' is used as an adjective to describe the noun '동굴' (cave), highlighting its intriguing and enigmatic nature.
나는 신비로운 동굴을 방문하고 싶어요.
I want to visit the mysterious cave.
In this sentence, '신비로운' modifies '분위기' (atmosphere), denoting a sense of mystery or allure elicited by the painting.
그녀의 그림에는 신비로운 분위기가 느껴져요.
Her painting evokes a mysterious atmosphere.
The adjective '신비로운' here is transformed into '신비로웠다' to describe the ending of the story as being mysteriously intriguing.