Chung In-Soo. 1999. A Semantic Study of Korean Adjective Comparative Constructions. Studies in Modern Grammar 18, 147-166. Korean comparative constructions can be divided into two groups: one with positive adjectives and verbs, the other with comparative adjectives and verbs. The primary aim of this study is to show the semantic differences among comparative constructions with `-mankem`, `-cherem`. We`ll show how the adjectives like "keda(tall)", "chakda(small)" comprise a open scale and how the meanings of those adjectives are distributed when they appear in comparative constructions. "kkekkethada(clean)" and "terepda(dirty)" appear on a asymmetric scale and they make some differences in `-mankem` and `-cherem` comparative constructions. "pida(empty)" and "chada(full)" comprise a limited scale and they also show some differences when they appear in comparative constructions. The adjectives like "pulkda(red)" appear on a single term scale and they don`t show any positive correlation with comparative constructions.