phlegmatic vs relaxed

phlegmatic

adj
  • Not easily excited to action or passion; calm; sluggish. 

  • Generating, causing, or full of phlegm. 

noun
  • One who has a phlegmatic disposition. 

relaxed

adj
  • Free from tension or anxiety; at ease; leisurely. 

  • Without physical tension; in a state of equilibrium. 

  • Made more lenient; less strict; lax. 

  • Of a muscle: soft, not tensed. 

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