Nantoka/괴질goejil괴질 (goejil) is a Korean word meaning “unidentified disease”.Meanings1unidentified diseasePart of speechnounHanja怪疾Related words질병illness괴물# monster질환illness변괴unusual miseries기암괴석unique rock and bizarre stone기괴하다grotesque괴벽weird habit괴변strange incident괴담spooky story괴기mystery괴기하다mysterious괴한suspicious personStudy Korean with flashcards →