inaccuracy vs inexactness

inaccuracy

noun
  • The property of being inaccurate; lack of accuracy. 

  • Incorrect calibration of a measuring device, or incorrect use; lack of precision. 

  • A statement, passage etc. that is inaccurate or false. 

  • A move that is considered suboptimal, but not as bad as a blunder. 

inexactness

noun
  • The characteristic or quality of being inexact; a lack of precision, accuracy, or certainty. 

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