centenarian vs inactive

centenarian

noun
  • One who or that which is at least 100 years old. 

adj
  • Aged 100 years or more; extremely old. 

  • Of or relating to centenarians or a centenary celebration. 

inactive

noun
  • A person who does not take action. 

adj
  • Showing no optical activity in polarized light. 

  • Retired from duty or service. 

  • Not engaging in physical activity. 

  • Relatively inert. 

  • Not functioning or operating; broken down 

  • Not active, temporarily or permanently. 

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