"That is quite expensive."

Translation: 그것은 상당히 비쌉니다.

[JosueJimen542039]

What's wrong with using 꽤?

[Okawoa]

그것은 상당히 비싸요 also please

[FurstWasser]

Here are the translations for "꽤": fairly, rather;

Here are the translations for "상당히": pretty, considerably, well, some, decently.

"꽤" is incorrect here because as clearly shown here, "quite" is not listed in the translations. Trust me I'm a Google Analytics and Translations consultant.

[EEdLoh]

The issue here is that duo accepts "quite" as a translation for 꽤 in some of the 한국어 to English translations.

[Joelegrice]

Weird because my korean girlfriend says it makes perfect sense. To her, 상당히 just sounds more exaggerated.

[Shlomo_]

.