This is the 829th most frequent Korean word.
정당한
"Justifiable" or "legitimate."
The word '정당한' here refers to something that is reasonable or justified in the given context.
그는 정당한 이유로 결석했어요.
He was absent for a legitimate reason.
Here, '정당한' implies fairness or equity in treatment or conditions.
정당한 대우를 받을 권리가 있습니다.
Everyone has the right to be treated fairly.
In this sentence, '정당한' is used to signify that the price is appropriate and justified considering the given factors.