overripe vs retrogressive

overripe

adj
  • Excessively ripe; spoiled; gone bad. 

retrogressive

noun
  • A person of retrogressive views or policies; a backward-looking conservative. 

adj
  • Of or relating to retrogression. 

  • Directed towards the rear or the past; retrograde. 

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