insignificancy vs nothingburger

insignificancy

noun

  • An insignificant person or thing. 

  • Unimportance, insignificance. 

nothingburger

noun

  • A person or object that is bland or unremarkable in appearance or impact. 

  • Something of less importance than its treatment suggests. 

  • A person who is a nonentity. 

adj

  • bland or unremarkable in appearance 

  • disreputable, as of a person 

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