consumable vs unused

consumable

adj
  • That is consumed or depleted upon use. 

  • That may be eaten. 

noun
  • A material or product that is produced for consumption. 

unused

adj
  • Not used. 

  • Not accustomed (to), unfamiliar with. 

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