impressive vs kingly

impressive

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

  • Appealing. 

  • Capable of being impressed. 

kingly

adj
  • Of or belonging to a king or kings; exercised by a king. 

  • Characteristic of kings, majestic, regal; as befits a king, in the manner of a king. 

adv
  • In a royal manner. 

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