beardless vs prepubescent

beardless

adj
  • Not having reached puberty or manhood; youthful. 

  • Destitute of an awn. 

  • Lacking a beard (a defined patch of feathers below the beak). 

  • Lacking a beard. 

prepubescent

adj
  • Before the age at which a person begins puberty. 

noun
  • A person who has not begun puberty. 

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