impudent vs saucy

impudent

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

saucy

adj
  • Impudently bold; pert. 

  • Sharp; pungent; piquant. 

  • Mildly erotic. 

  • Similar to sauce; having the consistency or texture of sauce. 

  • Impertinent or disrespectful, often in a manner that is regarded as entertaining or amusing; smart. 

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