lucent vs scintillating

lucent

adj
  • Emitting light; shining, luminous. 

  • Translucent; clear, lucid. 

scintillating

adj
  • That scintillates with brief flashes of light; sparkling. 

  • Brilliantly or impressively clever, exciting, amusing or witty. 

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