frivolous vs heady

frivolous

adj
  • Silly, especially at an inappropriate time or in an inappropriate manner. 

  • Having no reasonable prospect of success because its claim is without merit, lacking a supporting legal or factual basis, while the filing party is, or should be, aware of this. 

  • Of little weight or importance; not worth notice; slight; trivial. 

heady

adj
  • Tending to upset the mind or senses. 

  • Exhilarating. 

  • Rash or impetuous. 

  • Intellectual. 

  • Intoxicating or stupefying. 

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