antithetical vs consonant

antithetical

adj
  • Pertaining to antithesis, or opposition of words and sentiments; containing, or of the nature of, antithesis; contrasted. 

consonant

adj
  • consistent, harmonious, compatible, or in agreement 

  • Harmonizing together; accordant. 

  • Having the same sound. 

  • Of or relating to consonants; made up of, or containing many, consonants. 

noun
  • A sound that results from the passage of air through restrictions of the oral cavity; any sound that is not the dominant sound of a syllable, the dominant sound generally being a vowel. 

  • A letter representing the sound of a consonant. 

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