Words similar to not-good

Example sentences for: not-good

How can you use “not-good” in a sentence? Here are some example sentences to help you improve your vocabulary:

Such a case study is a not-good case study, and it is irredeemably flawed despite any methodological virtues it may have in terms of data collection, analysis, and reporting.
We turn now to other elements that distinguish a case study from a not-case study and a good case study from a not-good case study.
In fact, a case study where the only people interviewed were senior officials would be seen as a not-good case study, in contrast to one where the views of individuals at all levels affected was obtained.
What distinguishes a good case study from a not-good case study?