awkwardness vs unpretentiousness

awkwardness

noun
  • The state or quality of being awkward; clumsiness; unskillfulness. 

  • The quality of an embarrassing situation. 

unpretentiousness

noun
  • The state or condition of being unpretentious. 

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