confuse的形容词形式为confusing。confuse作为及物动词，基本含义为“混淆”、“使糊涂”、“使更难于理解”；confusing作为形容词形式，基本含义为“令人困惑”、“难以理解的”、“不清楚的”。

confuse作为及物动词，意为混淆;使糊涂;使迷惑;(将…)混同;使更难于理解。

例句：They confused me with conflicting accounts of what happened.

他们对发生的事所作的陈述自相矛盾，使我迷惑不解。

Be careful not to confuse quantity with quality.

注意不要把数量与质量混淆了。

His comments only served to confuse the issue further.

他的评论只是把问题弄得更加复杂。

German politics surprised and confused him.

德国政治既令他惊讶，又让他困惑不解。

People are confused about all the different labels on food these days.

人们如今被那些五花八门的食物标签搞得稀里糊涂。

She was so confused ─ her mind was spinning like a top.

她如坠五里雾中，被搞得晕头转向。

To the casual observer, the system appears confusing.

乍看起来，这个系统好像条理不清。

He was too distressed and confused to answer their questions.

他非常苦恼而困惑，无法回答他们的问题。

Historians seem to have confused the chronology of these events.

历史学家好像把这些事件发生的年代顺序搞混了。

confusing作为形容词时，意为令人困惑;难以理解的;不清楚的。

例句：The open-data shift poses a confusing problem for junior researchers.

开放数据的改变给初级研究者造成了一个令人困惑的问题。

Be careful not to confuse quantity with quality.

注意不要把数量与质量混淆了。

It is arguable that giving too much detail may actually be confusing.

过分详细反而使人糊涂的说法是有道理的。

The instructions on the box are very confusing.

盒子上的使用说明令人费解。

Great care is taken to avoid confusing the two types of projects

大家非常谨慎，以免把这两类项目弄混。

I think it's a serious mistake to confuse books with life

我认为把书本同生活混为一谈是大错特错。

Do not draw it on the chart, however, as this will confuse the issue

但不用把它画到图上去，因为那样反而会混淆问题的重点。