derivable vs unqualified

derivable

adj
  • able to be derived, deducible 

unqualified

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

  • Outright; thorough; utter. 

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

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