indifferent vs responsive

indifferent

adj
  • Indicating or reflecting a lack of concern or care. 

  • Ambivalent; unconcerned; uninterested, apathetic. 

  • Having no preference. 

  • Mediocre (usually used negatively in modern usage). 

  • Not making a difference; without significance or importance. 

  • Being in the state of neutral equilibrium. 

noun
  • A person who is indifferent or apathetic. 

responsive

adj
  • susceptible to the feelings of others 

  • using antiphons; antiphonal 

  • answering, replying or responding 

  • automatically resizing and repositioning elements to fit the available space 

  • able to receive and respond to external stimuli 

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