absurdity vs ludicrousness

absurdity

noun
  • The quality of being absurd or inconsistent with obvious truth, reason, or sound judgment. 

  • That which is absurd; an absurd action; a logical contradiction. 

ludicrousness

noun
  • The state or quality of being ludicrous. 

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