foggy vs visible

foggy

adj
  • Being, covered with, or pertaining to fog (“tall grass etc that grows after, or is left after, cutting; moss”) 

  • Obscured by mist or fog; unclear; hazy 

  • Confused, befuddled, etc. 

visible

adj
  • Able to be seen. 

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