insipidity vs lapalissade

insipidity

noun
  • Something that is insipid; an insipid utterance, sight, object, etc. 

  • The condition of being insipid; insipidness. 

lapalissade

noun
  • An obvious, self-evident truth, especially humorously so; a tautology or truism. 

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