brilliant vs class act

brilliant

adj
  • Highly intelligent. 

  • Magnificent or wonderful. 

  • Both bright and saturated. 

  • Shining brightly. 

  • Having a sharp, clear tone. 

  • Of surpassing excellence. 

noun
  • A finely cut gemstone, especially a diamond, cut in a particular form with numerous facets so as to maximize light return through the top (called "table") of the stone. 

  • Most hummingbird species of the genus Heliodoxa. 

  • A kind of cotton goods, figured on the weaving. 

class act

noun
  • Someone or something whose performance is excellent. 

  • An excellent performance. 

  • Someone or something who is generally well-mannered, conscientious, etc. 

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