This is the 5553rd most frequent Korean word.
못된
"못된" means "bad" or "ill-natured."
Here, '못된' describes vile or malicious behavior, implying incorrect actions.
그 아이는 못된 짓을 해서 혼이 났다.
That child was scolded for doing something bad.
In this sentence, '못된' characterizes a negative personality trait or bad temperament.
그는 못된 성격으로 친구들과 자주 다툰다.
He often argues with friends due to his bad attitude.
Here, '못된' refers to unfavorable or damaging nature of the rumor, showing a harmful effect.