fantastical vs illusory

fantastical

adj
  • Of or pertaining to fantasy. 

  • Fantastic. 

  • Fanciful or whimsical. 

illusory

adj
  • Resulting from an illusion; deceptive, imaginary, unreal. 

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