1. 不知不觉地：unknowing 没查觉的 | unknowingly 不知不觉地 | unknown soldier 阵亡的无名英雄

2. 不知：unknowing 没发觉的 | unknowing 不详的 | unknowingly 不知

3. 不知不觉地,无知地：Snapshot快照,快相 | Unknowingly不知不觉地,无知地 | Mischief恶作剧,开玩笑

4. 不知不觉的：universalized 普遍化 | unknowingly 不知不觉的 | unlawfully 非法的

1. 未意识到地；不知不觉地；无意中
    If someone does something unknowingly, they do it without being aware of it.

    e.g. ...if people unknowingly move into more contaminated areas of the river.
           如果人们在不知情的情况下搬到了河流污染更严重的地区
    e.g. ...the extent to which the workforce colludes knowingly or unknowingly with such criminal activity...
           在何种程度上职工有意或无意地参与到这样的犯罪活动中

adv

1. without knowledge or intention

    e.g. he unwittingly deleted the references

    Synonym: unwittinglyinadvertently