clouded vs shadowy

clouded

adj
  • Made dim or blurry. 

  • Variegated with spots. 

  • Filled with clouds. 

  • Unclear; surrounded in mystery. 

shadowy

adj
  • Vague, dim, unclear, faint of an image. 

  • Dark, obscure. 

  • In shadow; darkened by shadows. 

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