adj.无目的的，无用的，无意义的

His wandering through the city streets seemed purposeless.
他在城市街道上的游荡似乎没有目的。
The meeting dragged on for hours with no clear, purposeless discussion.
会议持续了几个小时，讨论漫无目的，没有明确重点。
She felt her life had become dull and purposeless after retirement.
退休后，她觉得自己的生活变得单调且毫无目标。
The purposeless life he leads is a stark contrast to the ambitious youth he once was.
他现在过着毫无目标的生活，与他曾经雄心勃勃的青年时期形成了鲜明对比。
Engaging in mindless, purposeless tasks can sometimes be a form of escapism.
从事无需思考、没有目的的任务有时是一种逃避现实的方式。
The artist's abstract painting may seem purposeless to some, but it conveys deep emotions.
那位艺术家的抽象画对某些人来说可能显得毫无目的，但它传达了深刻的情感。
Without a clear goal, his efforts seemed directionless and purposeless.
没有明确的目标，他的努力显得既无方向也无意义。
The protagonist's journey appeared purposeless at first, but gradually revealed a deeper quest.
主角的旅程起初看似毫无目的，但渐渐显露出一个更深层次的追求。
Wasting time on social media can leave one feeling unfulfilled and purposeless.
在社交媒体上消磨时间会让人感到空虚和缺乏目标。
The experiment, though well-funded, was ultimately deemed purposeless due to its lack of practical applications.
尽管资金充足，该实验最终因缺乏实际应用而被认为毫无意义。