unnervingly
🇺🇸
/ˌʌnˈnɜːrvɪŋli/
🇬🇧
/ˌʌnˈnɜːvɪŋli/
causing someone to feel anxious or scared
The way he stared at us was unnervingly intense.
그가 우리를 뚫어지게 쳐다보는 모습은 매우 강렬했다.