impressive vs incapable

impressive

adj
  • Appealing. 

  • Capable of being impressed. 

  • Making, or tending to make, a positive impression; having power to impress 

incapable

adj
  • Not capable (of doing something); unable. 

  • Not in a state to receive; not receptive; not susceptible; not able to admit. 

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