tepid vs viscerotonic

tepid

adj
  • Uninterested; exhibiting little passion or eagerness; lukewarm. 

  • Lukewarm; neither warm nor cool. 

viscerotonic

adj
  • Designating a personality type characterised as sociable, easy-going, and comfort-seeking. 

noun
  • A person with such a personality. 

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