dyed-in-the-wool vs unapologetic

dyed-in-the-wool

adj
  • Having the fibres dyed before they are formed into cloth. 

  • Firmly established in one's beliefs or habits; having a specified characteristic, identity, etc. deeply ingrained in one's nature. 

unapologetic

adj
  • Not apologetic for having said or done something that causes actual or potential harm, especially when being apologetic would be appropriate. 

How often have the words dyed-in-the-wool and unapologetic occurred in a corpus of books? (source: Google Ngram Viewer )