simple-minded vs tricky

simple-minded

adj
  • Lacking mental capacity; feeble-minded. 

  • Lacking subtlety or sophistication. 

tricky

adj
  • Relating to or associated with a prostitution trick 

  • adept at using deception 

  • hard to deal with, complicated 

How often have the words simple-minded and tricky occurred in a corpus of books? (source: Google Ngram Viewer )