instantaneously
🇺🇸
/ˌɪnstənˈteɪniəsli/
🇬🇧
/ˌɪnstənˈteɪniəsli/
happening at once, without delay
The light turned on instantaneously when we entered the room.
우리가 방에 들어간 순간 빛이 즉시 켜졌다.