agitated vs tremulous

agitated

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

  • Angry, annoyed, bothered or worked up. 

tremulous

adj
  • Trembling, quivering, or shaking. 

  • Timid, hesitant; lacking confidence. 

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