unimproved vs wrecksome

unimproved

adj
  • Not selectively bred for better quality or productiveness 

  • Not used or employed advantageously 

  • not tilled, built on, or otherwise improved for use. 

wrecksome

adj
  • Marked by a wreck or wreckage; resembling something that has been wrecked; banged up 

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