adversative vs disagreeable

adversative

adj
  • Expressing adverse effect. 

  • Expressing opposition or difference. 

disagreeable

adj
  • Causing repugnance; unpleasant to the feelings or senses; displeasing. 

noun
  • Something or someone displeasing; anything that is disagreeable. 

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