gently vs noiselessly

gently

adv
  • Quietly: without much noise or motion. 

  • In a gentle manner; to a gentle degree. 

  • Without strong force or quickness: softly, lightly. 

  • From a gentle or high-class family. 

noiselessly

adv
  • In a quiet manner, without any noise. 

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