What does 'futile' mean in the context of attempts or efforts?

The term 'futile' refers to efforts or attempts that are ineffective and achieve no meaningful results. In this context, describing something as futile implies that despite one’s efforts, there is an inherent lack of success or outcome, rendering those attempts fruitless.

The other options convey positive attributes: 'successful' suggests that efforts lead to the desired result, 'valuable' indicates worth or significance, and 'meaningful' points to something that has importance or purpose. However, these terms do not align with the concept of futility. Therefore, 'pointless' is the most appropriate choice, as it emphasizes the lack of effectiveness and end results that characterize futile attempts.