novel vs unrepeatable

novel

adj
  • Original, especially in an interesting way; new and striking; not of the typical or ordinary type. 

  • Newly made, formed or evolved; having no precedent; of recent origin; new. 

noun
  • A new legal constitution in ancient Rome. 

  • A work of prose fiction, longer than a novella. 

  • A fable; a short tale, especially one of many making up a larger work. 

unrepeatable

adj
  • (of an experiment or procedure) That gives different results when repeated 

  • Unable to be repeated 

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