undercooked vs untreated

undercooked

adj
  • Insufficiently cooked, so as to be unpalatable or inedible. 

  • Very lightly cooked. 

  • The broccoli was nicely undercooked. 

  • Done with insufficient energy, enthusiasm, etc. 

untreated

adj
  • Not treated. 

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