Nantoka/우환uhwan우환 (uhwan) is a Korean word meaning “worry; trouble; disease”.Meanings1worry2trouble3disease4illnessPart of speechnounHanja憂患Related words환자patient우려worry우울depression우울증the blues질환illness유비무환Forewarned, forearmed기우unfounded worry내우외환troubles both at home and abroad우국patriotism우국충정patriotism우국지사patriot우려되다fearStudy Korean with flashcards →