inclination vs slowness

inclination

noun
  • A tendency. 

  • The angle of intersection of a reference plane 

  • A physical tilt or bend. 

  • A slant or slope. 

slowness

noun
  • The quality or state of being slow. 

  • A unit, the reciprocal of velocity, that delineates the amount of time required for an object to travel a given distance. 

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