cannibal vs rapacious

cannibal

noun
  • An organism which eats others of its own species or kind, especially a human who eats human flesh. 

rapacious

adj
  • Given to taking by force or plundering; aggressively greedy. 

  • Voracious; avaricious. 

  • Subsisting off live prey. 

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