Titanic vs indispensable

Titanic

noun
  • A venture that fails spectacularly, especially one perceived as overconfident. 

name
  • The R.M.S. Titanic, an ocean liner, supposedly unsinkable, that sank on its maiden voyage on 15 April 1912 after colliding with an iceberg. 

adj
  • Of a conflict or contest: involving equally powerful participants. 

  • Of or relating to the Titans, a race of giant gods in Greek mythology. 

  • Having great size, or great force, power, or strength. 

indispensable

noun
  • A thing that is not dispensable; a necessity. 

adj
  • Absolutely necessary or requisite; that one cannot do without. 

  • Unbendable, that cannot be set aside or ignored. 

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