How to say to complain in Korean
Korean: 항의하다[ hang-ui-ha-da ]

Meaning
항의하다 means to complain or object when you think something is wrong or unfair. People use it when they want a person or place to fix a problem. It often sounds stronger than a small everyday complaint.
Example sentences
손님이 음식이 차갑다고 항의했어요.
The customer complained that the food was cold.
학생들이 시험이 너무 어렵다고 항의했어요.
The students complained that the test was too hard.
친구가 잘못한 일에 항의했어요.
I complained about my friend's mistake.
집주인이 소음 때문에 항의했어요.
The landlord complained about the noise.





