agitated vs cool-headed

agitated

adj
  • Angry, annoyed, bothered or worked up. 

  • Violently and chaotically moving around, such as because of being shaken. 

cool-headed

adj
  • Calm and imperturbable, especially under pressure. 

How often have the words agitated and cool-headed occurred in a corpus of books? (source: Google Ngram Viewer )