ideological vs notional

ideological

adj
  • Of or pertaining to an ideology. 

  • Based on an ideology or misleading studies or statistics, especially based on the media or propaganda. Not based on scientific evidence or reality. 

notional

adj
  • Of, containing, or being a notion; mental or imaginary. 

  • Having descriptive value as opposed to a syntactic category. 

  • Used to indicate an estimate or a reference amount 

  • Full of ideas or imaginings. 

  • Speculative, theoretical, not the result of research. 

noun
  • A fake company used as a front in espionage. 

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