Repetitive Adjectives – 흔하디흔하다 & More | Korean FAQ

For years as a beginner I saw verbs that used this form but never knew what they were, nor did I recognize that it was an actual form - just that this form kept popping up from time to time. This form doesn't have its own name, but you can think of it as the 디~다 form since that's the pattern that gets repeated when it's used.

Some common examples of this form are the verbs 흔하디흔하다, 높디높다, 쓰디쓰다, 푸르디푸르다, 좁디좁다, and 예쁘디예쁘다.