What sentiment is expressed by someone who has participated in a competition multiple times without success?

In a context where someone has participated in a competition multiple times without achieving success, the sentiment that is most accurately reflected is a sense of acceptance. Acceptance involves coming to terms with one's experiences and recognizing the outcomes without being overly distressed by them. This sentiment can be characterized by an understanding that competition has uncertain outcomes, and while it may be disappointing not to win, there is a level of acknowledgement that comes with repeated attempts.

This differs from wishful thinking, which implies a hopeful but unrealistic expectation of a different outcome without substantial evidence. In contrast, acceptance suggests a realistic evaluation of the situation. A participant showing acceptance would recognize their efforts, reflect on what they have learned, and perhaps maintain a desire to improve or try again, while not becoming overly discouraged by their past experiences.