bombastic vs sonorous

bombastic

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

  • High-sounding but with little meaning. 

sonorous

adj
  • Wordy or grandiloquent. 

  • Capable of giving out a deep, resonant sound. 

  • Full of sound and rich, as in language or verse. 

  • Produced with a relatively open vocal tract and relatively little obstruction of airflow. 

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