indifferently vs mildly

indifferently

adv
  • Tolerably; passably. 

  • Without distinction; impartially, objectively. 

  • Without great care; without sufficient attention or thought. 

mildly

adv
  • In a mild manner. 

  • To a mild degree; slightly. 

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