alike vs antithetical

alike

adj
  • Having resemblance or similitude; similar; without difference. 

adv
  • In the same manner, form, or degree; in common; equally. 

antithetical

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

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