This is the 11400th most frequent Korean word.
까다로운
"까다로운" means "picky," "fussy," or "difficult."
Here, '까다로운' describes a person's characteristic of being picky or hard to please.
그는 매우 까다로운 사람이라 어떤 음식을 잘 안 먹어요.
He is a very picky person, so he doesn't eat a lot of foods.
In this sentence, '까다로운' is used to describe a problem as complex or difficult.
까다로운 문제를 해결하는 데 시간이 걸릴 거예요.
It will take time to solve the complicated problem.
'까다로운' here characterizes customers whose needs or attitudes require careful attention.