insatiable vs omnivorous

insatiable

adj
  • Not satiable; incapable of being satisfied or appeased; very greedy 

noun
  • One who or that which cannot be satiated. 

omnivorous

adj
  • All-consuming. 

  • Having a diet which is neither exclusively carnivorous nor exclusively herbivorous. 

  • Having an interest in a variety of subjects. 

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