adj.漫无目的的，无条理的，随意的

The meeting was long and desultory, with no clear conclusions reached.
会议冗长而杂乱无章，没有达成明确的结论。
His reading habits were desultory; he would pick up a book, read a few pages, then abandon it for another.
他的阅读习惯很随意，常常拿起一本书读几页就换另一本。
The conversation at the party was desultory, as people drifted from group to group without engaging in any deep discussions.
聚会上的对话零散而不连贯，人们从一个群体转到另一个，没有进行任何深入的讨论。
Her exercise routine was desultory; she would jog one day and forget about it for weeks.
她的锻炼计划很随意，可能某天会去慢跑，然后几个星期都不再继续。
The tourist's gaze was desultory, taking in bits and pieces of the scenery without any particular focus.
游客的目光漫无目的，随意扫视着风景，没有特别集中的焦点。
His attempts at learning the piano were desultory; he never practiced enough to make real progress.
他学习钢琴的努力很零星，从未练习足够多以取得实际进步。
The detective's investigation was desultory at first, but it picked up pace once a crucial clue was found.
侦探的调查起初杂乱无章，但一旦发现关键线索后便加快了速度。
Her shopping was desultory; she wandered through the mall without any specific item in mind.
她的购物很随意，没有特定目标地在商场里闲逛。
The class discussion was desultory; students seemed disinterested and unprepared.
班级讨论松散无序，学生们显得不感兴趣且准备不足。
His travels were desultory; he would choose destinations impulsively, without planning or purpose.
他的旅行很随性，选择目的地全凭一时冲动，没有计划或目的。