Polemics (pronounced /pəˈlɛmɪks/, /poʊ-/) is the practice of disputing or controverting religious, philosophical, or political matters. As such, a polemic text on a topic is often written specifically to dispute or refute a position or theory that is widely viewed to be beyond reproach.

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The antonym of a polemic source is an apologia.
Polemic journalism was common in continental Europe when libel laws weren't stringen