This is the 3281st most frequent Korean word.
금지된
"Prohibited" or "forbidden."
The word '금지된' is used as an adjective describing the noun '행동', indicating that the given action is prohibited.
이곳에 들어가는 것이 금지된 행동입니다.
Entering this place is a prohibited action.
Here, '금지된' is modifying the noun '약물', showing that the substances are against regulations or rules.
그는 금지된 약물을 사용한 혐의를 받습니다.
He is accused of using prohibited substances.
In this context, '금지된' stresses that the act of playing music loudly at night is a disallowed matter under the rules.