unhappiness vs wisecrack

unhappiness

noun
  • The feeling of not being happy 

wisecrack

noun
  • A witty or sarcastic comment or quip. 

verb
  • To make a sarcastic, flippant, or sardonic comment. 

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