形容詞 unsuspecting:

1. not suspicious
   同義詞：unsuspicious
2. (often followed by `of') not knowing or expecting; not thinking likely

1. I am unsuspecting of the fact that John is debt-ride.
   我沒有料想到約翰已是債臺高筑。
2. The girl was so innocent and unsuspecting that she was enticed away by the first man who offered her some pretty dresses and a few pieces of jewellery.
   那女孩如此無知與輕信，第一個為她買了幾件漂亮衣服和幾件珠寶的人便誘她離家出走。