provisional vs unappealable

provisional

adj
  • Temporary, but with the intention of eventually becoming permanent or being replaced by a permanent equivalent. 

noun
  • A postage stamp issued locally before an official issue is released. 

  • An interim denture. 

unappealable

adj
  • Not appealable; that may not be appealed, or sent to a higher court for a second judgement. 

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