conclusive vs inflectional

conclusive

adj
  • Pertaining to a conclusion. 

  • Providing an end to something; decisive. 

inflectional

adj
  • Of or pertaining to inflection. 

  • Of or pertaining to a point of inflection of a curve. 

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