This is the 1653rd most frequent Korean word.
상당히
"상당히" means "quite" or "fairly."
Here, '상당히' is used to intensify the adjective '맛있다', similar to 'quite' or 'considerably' in English.
그 가게의 음식은 상당히 맛있다.
The food at that restaurant is considerably delicious.
In this sentence, '상당히' modifies the adverb '빠르게', indicating a notable or considerable degree.
그는 상당히 빠르게 문제를 해결했다.
He solved the problem fairly quickly.
Here, '상당히' is employed as an adverb coupled with adjectives to describe a moderate or appreciable level of the characteristics mentioned.