diametral vs dissentient

diametral

adj

  • Contrary; diametrically opposed. 

  • Of, relating to, or measured across a diameter. 

dissentient

adj

  • Dissenting; of a different opinion. 

noun

  • A dissenter. 

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