形容词

1. As the project developed, unsuspected difficulties came to the fore.
随着工程项目的发展，没有料到的困难接连出现了。

1. 未被怀疑的：unsurpassed 非常卓越的 | unsuspected 未被怀疑的 | unsuspecting 信任的

2. 未知的：unsurpassed /未被凌驾的/非常卓越的/ | unsuspected /未知的/ | unsuspecting /无怀疑的/无疑虑的/信任的/

3. 不受怀疑的,未知的：diagnostic 诊断的 | unsuspected 不受怀疑的,未知的 | interrelate 相互联系

1. 不知晓的；未察觉的
If you describe something as unsuspected, you mean that people do not realize it or are not aware of it.

e.g. A surprising number of ailments are caused by unsuspected environmental factors...
有大量疾病是由不明环境因素造成的。
e.g. He died in 1984 of an unsuspected brain tumour.
他于1984年意外死于脑瘤。

adj

1. not suspected or believed likely

e.g. remained unsuspected as the head of the spy ring
he was able to get into the building unspotted and unsuspected
unsuspected difficulties arose
unsuspected turnings in the road