carelessly vs softly

carelessly

adv
  • Giving the appearance of carelessness; relaxedly. 

  • Done without care or attention; inattentively. 

softly

adv
  • In a soft manner; gently. 

  • Not loudly; nearly inaudibly. 

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