incommensurable vs variant

incommensurable

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

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

  • having no common integer divisor except 1. 

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

variant

adj
  • Showing deviation or disagreement. 

  • Showing variety, diverse. 

  • Covariant and/or contravariant. 

noun
  • Something that is slightly different from a type or norm. 

  • A different sequence of a gene (locus). 

  • A variable that can hold any of various unrelated data types. 

  • One of a set of words or other linguistic forms that conveys the same meaning or serves the same function. 

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