clouded vs luminous

clouded

adj
  • Variegated with spots. 

  • Made dim or blurry. 

  • Filled with clouds. 

  • Unclear; surrounded in mystery. 

luminous

adj
  • Brightly illuminated. 

  • Clear; enlightening; easy to understand. 

  • Emitting light; glowing brightly; shining. 

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