cool cat vs quiet

cool cat

noun
  • An individual who is at ease and self-assured; one who is calm and composed in interactions with others. 

  • A person who performs or appreciates jazz, especially one whose style of speech and movement is relaxed and rhythmic. 

quiet

noun
  • The absence of movement; stillness, tranquility. 

  • The absence of sound; quietness. 

  • The absence of disturbance or trouble; peace, security. 

adj
  • Not busy, of low quantity. 

  • Not talking much or not talking loudly; reserved. 

  • With little or no sound; free of disturbing noise. 

  • Not showy; undemonstrative. 

  • Requiring little or no interaction. 

  • Having little motion or activity; calm. 

verb
  • To become quiet or calm. 

  • To cause (someone or something) to become quiet. 

intj
  • Be quiet. 

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