stomachable vs unstomachable

stomachable

adj
  • tolerable; capable of being stomached; not so distasteful as to be unacceptable. 

unstomachable

adj
  • Not stomachable; distasteful to the point that it cannot be accepted. 

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