Advance ㅊ diligent in Korean: 착실하다’s meaning and pronunciation diligent in Korean is 착실하다. For examples, you can use like [착실한 남편, 착실한 일꾼]. In this post you will learn how to pronounce and use diligent in Korean along with examples. 2022.12.21 Advance ㅊAdvanced WordsWordsㅊ