adj.无疑心的；无戒心的；未料到的
It is possible to fool unsuspecting buyers. 欺骗那些易轻信的买主是可能的。
Numerous pitfalls await unsuspecting investors. 数不清的陷阱等待毫无戒心的投资者。
I am unsuspecting of the fact that John is debt-ride. 我没有料想到约翰已是债台高筑。
