kaleidoscopic vs revocable

kaleidoscopic

adj
  • Of, relating to, or produced by a kaleidoscope. 

  • Brightly coloured and continuously changing in pattern, as if in a kaleidoscope. 

revocable

adj
  • Having the ability of being revoked; capable of being revoked. 

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