unkind vs viscerotonic

unkind

adj
  • Lacking kindness, sympathy, benevolence, gratitude, or similar; cruel, harsh or unjust; ungrateful. 

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 unkind and viscerotonic occurred in a corpus of books? (source: Google Ngram Viewer )