multiethnic vs rainbowed

multiethnic

adj
  • Of, pertaining to, or consisting of several ethnic groups. 

noun
  • A member of more than one ethnic group. 

rainbowed

adj
  • Made up of several races or ethnicities; rainbow. 

  • Resembling, involving, or illuminated with a rainbow; patterned with the colours of the rainbow. 

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