A person or activity that is aimless has no clear purpose or plan.
例句
Peters had been adrift and aimless...彼得斯曾經漫無目的地四處漂泊。After several hours of aimless searching they were getting low on fuel.在幾個小時漫無目的的搜尋之后，他們快沒燃料了。
英漢詞典釋義
adv.
漫無目的地,無目標地
For the rest of the morning he searched aimlessly through the town.上午余下的時間里 ，他在鎮上漫無目標地四處搜尋。Ann was strolling along aimlessly when I brought her up short by calling her name from the other side of the street.安正在街上漫無目標地閑逛,我從街對面叫她,她便停了下來。