unexplained
🇺🇸
/ˌʌnɪkˈspleɪnd/
🇬🇧
/ˌʌnɪkˈspleɪnd/
Something that has no clear reason or has not been described how it happened.
The unexplained noises during the night kept everyone awake.
밤에 설명할 수 없는 소음 때문에 모두 잠들지 못했습니다.