alexithymic vs vacuous

alexithymic

adj
  • Lacking in emotion or emotional expression. 

  • Pertaining to or having alexithymia. 

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

vacuous

adj
  • Showing a lack of thought or intelligence; vacant. 

  • Empty; void; lacking meaningful content. 

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