immaculate vs unmarked

immaculate

adj
  • (botany) Lacking blotches, spots, or other markings. 

  • absolutely tidy, having no blemish or stain. 

  • containing no mistakes. 

  • morally pure, free from sin. 

unmarked

adj
  • Not marked; not standing out as unusual. 

  • Not bearing identification. 

  • Not noticed. 

  • Free from blemishes. 

  • Not marked, not closely followed by a defensive player. 

  • Not having been marked, or assigned a score. 

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