ghoulish vs monstrous

ghoulish

adj
  • Fascinated by corpses. 

  • Of or pertaining to corpses and graverobbing. 

  • Of or pertaining to ghouls. 

monstrous

adj
  • Hideous or frightful. 

  • Enormously large. 

  • Of, or relating to a mythical monster; full of monsters. 

  • Freakish or grotesque. 

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