edible vs indigestible

edible

adj
  • Capable of being eaten without disgust. 

  • In which edible plants are grown for human consumption. 

  • Capable of being eaten without harm; suitable for consumption; innocuous to humans. 

noun
  • Anything edible. 

  • In particular, an edible mushroom. 

  • a foodstuff, usually a baked good, infused with tetrahydrocannabinol from cannabutter etc. 

indigestible

noun
  • Anything that is difficult to digest. 

adj
  • Difficult or impossible to digest. 

  • Difficult to accept; unpalatable. 

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