1. 不满意的：first-class 一等品 | unsatisfactory 不满意的 | sample 样品

2. 令人不满意的：unsatisfactorily 不能令人满意地 | unsatisfactory 令人不满意的 | unsaturated 不饱和的

1. 不够好的；不能令人满意的；不能接受的
If you describe something as unsatisfactory, you mean that it is not as good as it should be, and cannot be considered acceptable.

e.g. The inspectors said just under a third of lessons were unsatisfactory...
督察员说只有不到1/3的课程不够好。
e.g. He asked a few more questions, to which he received unsatisfactory answers.
他又问了几个问题，得到的答案都不令人满意。

adj

1. not giving satisfaction

e.g. shops should take back unsatisfactory goods
her performance proved to be unsatisfactory
life is becoming increasingly unsatifactory
our discussion was very unsatisfactory