internal vs irrelevant

internal

adj
  • Within the body. 

  • Concerned with the domestic affairs of a nation, state or other political community. 

  • Of the inner nature of a thing. 

  • Applied or intended for application through the stomach by being swallowed. 

  • Concerned with the non-public affairs of a company or other organisation. 

  • Attending a university as well as taking its examinations. 

  • Of or situated on the inside. 

  • Experienced in one's mind; inner rather than expressed. 

  • Present or arising within an organism or one of its parts. 

irrelevant

adj
  • Not usefully related: not associated in any way that is important or useful to the context being discussed: not materially applicable; having connections not applicable in the present situation. 

  • Not at all related: totally unrelated, wholly unconnected, completely inapplicable. 

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