This is the 3341st most frequent Korean word.
낯선
Unfamiliar; strange.
Here, "낯선" is used as an adjective modifying the noun "거리" (street), indicating unfamiliarity or strangeness about a place.
낯선 거리가 처음에는 불편했지만, 이제는 익숙해졌어요.
The unfamiliar street was uncomfortable at first, but now it has become familiar.
In this sentence, "낯선" describes the noun "사람" (person), depicting the quality of being unknown or strange.
그는 낯선 사람에게 말을 거는 것을 어려워합니다.
He finds it difficult to talk to strangers.
"낯선" serves as an adjective for the noun "감정" (feeling), portraying the feeling as being unknown or unusual.