incommensurable vs unsteady

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. 

unsteady

adj
  • Lacking regularity or uniformity. 

  • Inconstant in purpose, or volatile in behavior. 

  • Not held firmly in position, physically unstable. 

verb
  • To render unsteady, removing balance. 

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