pretty well vs silently

pretty well

adv
  • Used other than figuratively or idiomatically: see pretty, well. 

  • Synonym of pretty much (“almost completely; very nearly”) 

silently

adv
  • In a silent manner; making no noise. 

  • Of an edit or change to a text, without explicit acknowledgment. 

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