unchancy vs unhappy

unchancy

adj

  • Unfortunate, unlucky. 

  • Dangerous, unsafe. 

unhappy

adj

  • Not satisfied; unsatisfied. 

  • Not happy; sad. 

noun

  • An individual who is not happy. 

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