unsystematic

Her unsystematic notes were hard to review before the exam.

她那些不系统的笔记在考试前很难复习。

用法提示：unsystematic 作定语修饰 notes，表示笔记零散、没有条理。

The investigation was criticized for being unsystematic and disorganized.

这项调查被批评为不系统、杂乱无章。

用法提示：unsystematic 作表语（与 being 连用），描述调查缺乏系统性。

He packed his suitcase in an unsystematic way, throwing clothes in at random.

他收拾行李箱时毫无章法，随手乱扔衣服。

用法提示：unsystematic 作定语修饰 way，说明做事方式不系统。