polychromatic vs vibrant

polychromatic

adj
  • Composed of more than one wavelength. 

  • Showing a variety, or a change, of colours; having many colours; multicoloured. 

vibrant

adj
  • Bright. 

  • Pulsing with energy or activity. 

  • Vibrating, resonant or resounding. 

  • Lively and vigorous. 

noun
  • Any of a class of consonants including taps and trills. 

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