The study or practice of using antithesis (opposing ideas) for rhetorical or philosophical effect.
From antithetic (relating to antithesis), from Late Latin antitheticus, from Greek antithetikos (opposed), from antitithēnai (to place against). The plural -ics form emphasizes it as a field of study or set of principles.
When Martin Luther King Jr. said 'I have a dream' opposite to the reality of segregation, he was using antithetics—deliberately placing two opposing truths side-by-side makes each one more powerful and unforgettable.
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