responsive vs unenthusiastic

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 

unenthusiastic

adj
  • Without enthusiasm; unexcited. 

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