incommensurable vs inconsistent

incommensurable

adj
  • Not able to be measured by the same standards as another term in the context. 

  • having a ratio that is not expressible as a fraction of two integers. 

  • having no common integer divisor except 1. 

noun
  • An incommensurable value or quantity; an irrational number. 

inconsistent

adj
  • Lacking internal consistency; self-contradicting; not compatible with itself. 

  • Not consistent or coherent in thought or behavior. 

  • Having the property that a contradiction can be derived. 

  • Not compatible (with another thing); incompatible, discrepant, at odds. 

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