disinterested vs impressed

disinterested

adj
  • Uninterested, lacking interest. 

  • Having no stake or interest in the outcome, and no conflicts of interest; free of bias, impartial. 

impressed

adj
  • stamped, under pressure 

  • confiscated by force or authority 

  • compelled to serve in a military force 

  • strongly affected, especially favourably 

How often have the words disinterested and impressed occurred in a corpus of books? (source: Google Ngram Viewer )