high-flown vs rhetorical

high-flown

adj
  • pretentiously eloquent; highly figurative 

  • lofty, extravagant, refined 

rhetorical

adj
  • Part of or similar to rhetoric, the use of language as a means to persuade. 

  • Not earnest, or presented only for the purpose of an argument. 

How often have the words high-flown and rhetorical occurred in a corpus of books? (source: Google Ngram Viewer )