benign vs sugarless

benign

adj
  • Not harmful to the environment. 

  • Kind; gentle; mild. 

  • Not posing any serious threat to health; not particularly aggressive or recurrent. 

  • mild and favorable 

sugarless

adj
  • Containing no refined sugar as an ingredient. 

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