angularity vs inflexibility

angularity

noun
  • A stiff, cranky, crotchety manner or behaviour. 

  • The property or characteristic of possessing angles. 

  • A sharp point or angle. 

inflexibility

noun
  • The quality or state of being inflexible, or not capable of being bent or changed; unyielding stiffness 

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