boisterous vs secretive

boisterous

adj
  • Having or resembling animal exuberance. 

  • Full of energy; exuberant; noisy. 

  • Characterized by violence and agitation; wild; stormy. 

secretive

adj
  • Having an inclination to secrecy 

  • Relating to secretion 

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