disinterested vs unqualified

disinterested

adj
  • Uninterested, lacking interest. 

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

unqualified

adj
  • Not qualified, ineligible, unfit for a position or task. 

  • Not elaborated upon, or not accompanied by restrictions or qualification; undescribed. 

  • Outright; thorough; utter. 

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