big-headedness vs pretension

big-headedness

noun
  • The state or quality of being big-headed. 

pretension

noun
  • A claim or aspiration to a particular status or quality. 

  • Pretentiousness. 

verb
  • To apply tension to reinforcing strands before concrete is poured in. 

  • To apply tension to an object before some other event or process. 

How often have the words big-headedness and pretension occurred in a corpus of books? (source: Google Ngram Viewer )