beautiful vs prettiful

beautiful

adj
  • Attractive and possessing beauty. 

  • Well executed. 

  • Good, admirable. 

  • Pleasant; clear. 

noun
  • Someone who is beautiful. Can be used as a term of address. 

prettiful

adj
  • pretty, beautiful, cute 

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