diametrically vs emphatically

diametrically

adv
  • Absolutely (in opposition). 

  • Separated by a diameter, on exactly the opposite side. 

emphatically

adv
  • Most definitely; truly. 

  • In an emphatic manner; with emphasis. 

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