What is the meaning of dour?

The word "dour" is best defined as stern, unyielding, or gloomy. This term is often used to characterize a person with a serious demeanor, someone who may appear unfriendly or harsh in attitude. It conveys a sense of severity and lack of cheerfulness, aligning perfectly with the definition provided in the correct answer.

In contrast, the other choices describe positive or lively characteristics that are not aligned with the meaning of "dour." For instance, cheerful and uplifting conveys a sense of joyfulness, which directly contradicts the somber essence of "dour." Excited and eager suggests enthusiasm, while joyfully playful implies a carefree spirit, both of which stand in stark contrast to the unyielding and gloomy nature associated with being dour.