pubescent vs thistly

pubescent

adj
  • Covered with down or fine hairs. 

  • At or just after the age of puberty. 

noun
  • An individual who is going through puberty. 

  • Synonym: See Thesaurus:pubescent 

thistly

adj
  • Covered in thistles. 

  • Resembling a thistle. 

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