acquired vs implicit

acquired

adj
  • Developed after birth; not congenital. 

implicit

adj
  • Contained in the essential nature of something but not openly shown 

  • Implied indirectly, without being directly expressed 

  • Having no reservations or doubts; unquestioning or unconditional; usually said of faith or trust. 

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