antithetical vs identical

antithetical

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

identical

adj
  • Not different or other; not another or others; not different as regards self; selfsame; numerically identical. 

  • Bearing full likeness by having precisely the same set of characteristics; indistinguishable. 

  • Of twins, sharing the same genetic code. 

  • Approximating or approaching exact equivalence. 

  • Exactly equivalent. 

  • For more quotations using this term, see Citations:identical. 

noun
  • Something which has exactly the same properties as something else. 

  • An identical twin. 

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