슬프다
seulpeuda · TOPIK 1
to be sad
seul-peu-da: sounds like soul-pooh-da, a soul that sighs pooh is sad
The stem 슬프 (seulpeu) plus the dictionary ending 다 (da). Say it slowly: seul is close to soul, and peu is a puff of breath like a sigh. A soul letting out a sigh = to be sad. Related noun: 슬픔 (seulpeum), sadness.