fluffy vs indigestible

fluffy

adj
  • Not clearly defined or explained; fuzzy. 

  • Lightweight; superficial; lacking depth or seriousness. 

  • Covered with fluff. 

  • Light; soft; airy. 

  • Warm and comforting. 

noun
  • Someone or something that has a fluffy texture. 

  • A babycino (frothy milk drink). 

  • A person who is superficial, who lacks depth or seriousness. 

indigestible

adj
  • Difficult or impossible to digest. 

  • Difficult to accept; unpalatable. 

noun
  • Anything that is difficult to digest. 

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