unsuspected
🇺🇸
/ˌʌnsəˈspektɪd/
🇬🇧
/ˌʌnsəˈspektɪd/
Something that is not known or thought about before it happens or is discovered.
The detective discovered an unsuspected clue in the case.
偵探在案件中發現了一個未被懷疑的線索。