cheeky vs impudent

cheeky

adj
  • Impudent; impertinent; impertinently bold, often in a way that is regarded as endearing or amusing. 

  • Poisonous (of animals such as snakes), dangerous, cunning, violent, potent. 

  • Indulged in. 

  • (of swimwear, underwear, etc.) tending to reveal the cheeks of the buttocks. 

impudent

adj
  • Not showing due respect; impertinent; bold-faced. 

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