patternless vs unpainted

patternless

adj
  • Without a decorative pattern. 

  • That does not cut around a pattern. 

  • That does not belong to a programming or markup pattern. 

  • Without a repeating pattern; random. 

unpainted

adj
  • Not painted 

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