1. 不知情的；不知不觉的；无意的
If you describe a person or their actions as unwitting, you mean that the person does something or is involved in something without realizing it.

1. not aware or knowing

e.g. an unwitting subject in an experiment

2. unaware because of a lack of relevant information or knowledge

e.g. he was completely ignorant of the circumstances
an unknowledgeable assistant
his rudeness was unwitting

Synonym: ignorantunknowledgeableunknowing

3. not done with purpose or intent

e.g. an unintended slight
an unintentional pun
the offense was unintentional
an unwitting mistake may be overlooked

Synonym: unintentionalunplanned