unobserved
🇺🇸
/ˌʌnəbˈzɜːrvd/
🇬🇧
/ˌʌnəbˈzɜːvd/
adjective
R
not noticed or seen by others
The thief managed to sneak in unobserved during the party.
小偷在派对期间未被发现地溜了进来。
translation
未被察觉