noncomparable vs unanswerable

noncomparable

adj

  • Not comparable. 

unanswerable

adj

  • Not answerable; impossible to answer. 

  • Impossible to dispute or rebut; irrefutable; conclusive. 

noun

  • Something that cannot be answered. 

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