This paper aims to classify morphological, syntactic and semantic properties of Korean adjectives to assign required linguistic information to electronic lexicon entries. Morphological information including inflectional classes is the first demanded in the automatic language processing system. We present 24 inflectional classes for about 6,000 adjectives defined by a formal criterion. We here introduce 15 syntactic classes and 12 semantic classes of adjectives, which can be used to extract syntactico-semantic information from online documents.
