dull vs foggy

dull

adj
  • Cloudy, overcast. 

  • Not bright or intelligent; stupid; having slow understanding. 

  • Insensible; unfeeling. 

  • Not intense; felt indistinctly or only slightly. 

  • Sluggish, listless. 

  • Boring; not exciting or interesting. 

  • Not shiny; having a matte finish or no particular luster or brightness. 

  • Lacking the ability to cut easily; not sharp. 

  • Heavy; lifeless; inert. 

  • Not clear, muffled. 

verb
  • To render dull; to remove or blunt an edge or something that was sharp. 

  • To soften, moderate or blunt; to make dull, stupid, or sluggish; to stupefy. 

  • To lose a sharp edge; to become dull. 

  • To render dim or obscure; to sully; to tarnish. 

foggy

adj
  • Obscured by mist or fog; unclear; hazy 

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

  • Confused, befuddled, etc. 

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