an·ti·thet·i·cal /ˌæntəˈθɛtɪkəl/
  (a.)正相反的;對照的
  An·ti·thet·ic An·ti·thet·ic·al a.  Pertaining to antithesis, or opposition of words and sentiments; containing, or of the nature of, antithesis; contrasted.
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  antithetical
       adj : sharply contrasted in character or purpose; "practices
             entirely antithetical to her professed beliefs"; "hope
             is antithetic to despair" [syn: antithetic]