alexithymic vs apathetic

alexithymic

adj
  • Lacking in emotion or emotional expression. 

  • Pertaining to or having alexithymia. 

noun
  • A person who has difficulty feeling, processing or understanding emotions 

apathetic

adj
  • Void of feeling; not susceptible of deep emotion. 

  • Of, or pertaining to apatheism. 

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