unwittingly       
adverb  formal uk/ʌnˈwɪt.ɪŋ.li/ us/ʌnˈwɪt̬.ɪŋ.li/
 不知情地;无意地
in a way that is done without knowing or planning
  I apologize for any anxiety which I may, unwittingly, have caused. 对于我可能在不知不觉中引起的任何焦虑,我深表歉意。 
 Unwittingly, I may have given a misleading impression in my interviews. 我可能无意之间在我的采访中留下了误导性的印象。 
 See: unwitting
 - More examples
 - She may have unwittingly misled voters.
 - People have signed up to receive these messages, although they may have done it unwittingly.
 - She had broken the law unwittingly, but still she had broken it.