boisterous vs flustering

boisterous

adj
  • Characterized by violence and agitation; wild; stormy. 

  • Having or resembling animal exuberance. 

  • Full of energy; exuberant; noisy. 

flustering

adj
  • agitated, confusing 

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