a.

1. 无罪的，清白的[（+of）]
   He was pronounced innocent of the charge.

   他被宣告无罪。

2. 无害的
   The butterfly is an innocent insect.

   蝴蝶是一种无害的昆虫。

3. 天真的，单纯的
4. 幼稚的；头脑简单的，愚钝的
   Don't be so innocent as to believe everything he says.

   不要这么天真，竟相信他所说的一切。

adj.

1. not guilty of a crime or offence.
   ▸not responsible or directly involved:

   an innocent bystander.
2. free from moral wrong; not corrupted.
3. not intended to cause offence; harmless.
4. (innocent of) without experience or knowledge of:
   a man innocent of war's cruelties.
   ▸without; lacking.

n.