foggy vs indefinite

foggy

adj
  • Confused, befuddled, etc. 

  • 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 

indefinite

adj
  • Vague or unclear. 

  • Undecided or uncertain. 

  • Being an integral without specified limits. 

  • Designating an unspecified or unidentified person or thing or group of persons or things 

  • Without limit; forever, or until further notice; not definite. 

noun
  • A word or phrase that designates an unspecified or unidentified person or thing or group of persons or things. 

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