frigid vs sexually unresponsive

frigid

adj
  • Chilly in manner; lacking affection or zeal; impassive. 

  • Sexually unresponsive, especially of a woman. 

  • Very cold; lacking warmth; icy. 

sexually unresponsive

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