discrepant vs incommensurable

discrepant

adj
  • Showing difference; inconsistent, dissimilar. 

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. 

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