foggy vs monotone

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. 

monotone

adj
  • Being, or having the salient properties of, a monotone function. 

  • Having a single unvaried pitch. 

verb
  • To speak in a monotone. 

noun
  • A piece of writing in one strain throughout. 

  • A single unvaried tone of speech or a sound. 

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