adversative vs averse

adversative

adj
  • Expressing opposition or difference. 

  • Expressing adverse effect. 

averse

adj
  • Having a repugnance or opposition of mind. 

  • Turned away or backward. 

  • Turned so as to show the back, as of a right hand. 

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