appalling vs ghoulish

appalling

adj
  • Horrifying and astonishing. 

  • Extremely bad; terrible 

ghoulish

adj
  • Fascinated by corpses. 

  • Of or pertaining to corpses and graverobbing. 

  • Of or pertaining to ghouls. 

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