ignorant vs immature

ignorant

adj
  • Resulting from ignorance; foolish; silly. 

  • Ill-mannered, crude. 

  • Not knowing (a fact or facts), unaware (of something). 

  • Unknowledgeable or uneducated; characterized by ignorance. 

noun
  • One who is ignorant. 

immature

adj
  • Childish in behavior; juvenile. 

  • Not fully formed or developed; not grown. 

noun
  • An immature member of a species. 

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