clouded vs leaden

clouded

adj
  • Made dim or blurry. 

  • Variegated with spots. 

  • Filled with clouds. 

  • Unclear; surrounded in mystery. 

leaden

adj
  • Dull; darkened with overcast. 

  • Pertaining to or resembling lead; grey, heavy, sluggish. 

verb
  • To make or become dull or overcast. 

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