꽤 + adjective/adverb: 꽤 맛있어요 · 꽤 많이
quite, pretty, fairly
Example
그 식당은 비싸지만 음식이 꽤 맛있어요.
That restaurant is expensive, but the food is pretty good.
Good to know
꽤 is weaker than 아주 but stronger than 좀 — like English 'pretty' or 'quite'.
Related words