What does it mean to endure or accept something unpleasant?

The term that best captures the meaning of enduring or accepting something unpleasant is "brook." To brook something means to tolerate or allow it, especially something that one finds disagreeable or objectionable. This word conveys the notion of putting up with an unpleasant situation without complaint, which aligns perfectly with the idea of endurance and acceptance.

While other terms, such as "bear," also imply the act of tolerating something difficult, "brook" specifically emphasizes the aspect of enduring something that one might not fully approve of. In contrast, "curse" involves expressing strong dislike or frustration about something, which doesn’t imply acceptance. "Suffer" generally refers to experiencing pain or distress and does not convey the acceptance aspect that "brook" suggests. Thus, "brook" is the most fitting choice, as it directly relates to the acceptance of unpleasant circumstances.