discontent vs smug

discontent

adj
  • Not content; discontented; dissatisfied. 

verb
  • To deprive of contentment; to make uneasy; to dissatisfy. 

noun
  • Dissatisfaction. 

  • A longing for better times or circumstances. 

  • A discontented person; a malcontent. 

smug

adj
  • Irritatingly pleased with oneself; offensively self-complacent, self-satisfied. 

  • Showing smugness; showing self-complacency, self-satisfaction. 

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