boundless vs prodigious

boundless

adj
  • Without bounds, unbounded. 

prodigious

adj
  • Very big in size or quantity; colossal, gigantic, huge. 

  • Extraordinarily amazing or exciting. 

  • Freakish; monstrous. 

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