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.
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.
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.
What distinguishes a good case study from a not-good case study?