"Ardent" is an adjective that describes a strong feeling of passion or enthusiasm. It is often used to characterize someone who is deeply committed to a cause, idea, or activity. For example, an ardent supporter of a sports team shows great loyalty and excitement for their team’s success. In literature, the term can also refer to intense emotions expressed by characters. An ardent lover in a novel might demonstrate fervent affection and devotion. Overall, the word conveys a sense of warmth and intensity in feelings or actions.