bombastic vs declamatory

bombastic

adj
  • High-sounding but with little meaning. 

  • showy in speech and given to using flowery or elaborate terms; grandiloquent; pompous 

declamatory

adj
  • Pretentiously lofty in style; bombastic. 

  • Having the quality of a declamation. 

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