unavailable vs unmarriageable

unavailable

adj
  • Not available. 

noun
  • A communist who operated underground and was therefore not available for a political leadership position. 

unmarriageable

adj
  • Not marriageable, unsuitable for marriage. 

  • That cannot be reconciled, inconsistent. 

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