desirable vs gustable

desirable

adj
  • Worthy to be desired; pleasing; agreeable. 

noun
  • A thing that people want; something that is desirable. 

gustable

adj
  • Pleasant to the taste; toothsome; savory. 

  • Having a taste; capable of being tasted. 

noun
  • Something edible. 

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