administrative vs white-collar

administrative

adj
  • Of or relating to administering or administration. 

white-collar

adj
  • Of or pertaining to office work and workers; contrasted with blue-collar. 

  • Pertaining to the culture of white-collar workers, as values, politics, etc.; contrasted with blue-collar. 

How often have the words administrative and white-collar occurred in a corpus of books? (source: Google Ngram Viewer )