unsuspected
adjective /ˌʌnsəˈspektɪd/
/ˌʌnsəˈspektɪd/
- not predicted or known; that you were not previously aware of
未预料到的；未知的；未觉察到的 - Scientists are investigating the previously unsuspected side effects of the drug.
科学家们正在调查这种药物以前未曾预料到的副作用。
- Scientists are investigating the previously unsuspected side effects of the drug.