long-standing vs unapologetic

long-standing

adj
  • Having existed for a long time. 

  • Having been done for long enough time to become convention. 

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 long-standing and unapologetic occurred in a corpus of books? (source: Google Ngram Viewer )