This is the 2822nd most frequent Spanish word.
polémico
Controversial; causing debate or disagreement.
In this sentence, 'polémico' is used as an adjective to describe a subject causing debate or disagreement.
El tema de la reforma educativa es muy polémico.
The topic of educational reform is very controversial.
Here, 'polémico' qualifies a book, indicating that its content or ideas provoked strong reactions.
El autor escribió un libro polémico que generó muchas críticas.
The author wrote a controversial book that generated much criticism.
In this example, 'polémico' is used to describe a speech that incited division amongst listeners due to its contentious nature.