reactionary vs undaring

reactionary

noun
  • One who is opposed to progress and change and wants to reverse it, wishing for a return to an alleged, mythical golden age of the past. 

adj
  • In reaction to; as a result of. 

  • Of, pertaining to, participating in, or inducing a chemical reaction. 

  • Favoring a return to an alleged, mythical golden age of the past; anti-progressive. 

undaring

adj
  • not daring; unadventurous 

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