Most polite:조용히 하세요.(Jo-yong-hi ha-se-yo)Please be quiet.Much more Impolite/Informal:입닥쳐 (eep-dak-chyeo)Shut your mouth!조용히해! - be quiet!(jo-yong-hee-hae)@
How to Say "SHUT UP" in Korean | Korean Words For Beginners Though, do take note that even “please be quiet” is something that is considered quite informal in the Korean language, no matter how formally you try to say it. Therefore, take that into consideration before telling anyone to...