calamitous vs promising

calamitous

adj
  • Concerning or involving calamity, disastrous. 

promising

noun
  • The act of making a promise. 

adj
  • Showing promise, and likely to develop in a desirable fashion. 

  • a promising young apprentice 

  • Encouraging and inspiring confidence. 

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