inert vs unexercised

inert

adj
  • Having no therapeutic action. 

  • Unable to move or act; inanimate. 

  • Sluggish or lethargic. 

  • In chemistry, not readily reacting with other elements or compounds. 

verb
  • To fill with an inert gas to reduce the risk of explosion. 

noun
  • A substance that does not react chemically. 

unexercised

adj
  • Not having been exercised 

  • Not having been subjected to physical exercise. 

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