Adjective:

1. not suspicious;

   "deceiving the unsuspecting public"
   

2. (often followed by `of') not knowing or expecting; not thinking likely;

   "an unsuspecting victim"
   "unsuspecting (or unaware) of the fact that I would one day be their leader"
   

naiveadj.天真的；幼稚的

unawareadj.没有发觉的；不知道的

unsuspiciousadj.无怀疑的；不可疑的；无疑虑的

unwaryadj.不小心的；疏忽的

gullibleadj.易受骗的；轻信的

credulousadj.轻信的；易受骗的

innocentadj.清白的；无害的；无辜的；无知的；天真纯洁的

1. It is possible to fool unsuspecting buyers.
   欺骗那些易轻信的买主是可能的。
2. Numerous pitfalls await unsuspecting investors.
   数不清的陷阱等待毫无戒心的投资者。
3. 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。