Non-functionally is a word used to describe something that is not working properly or efficiently. There are several synonyms for non-functionally, including ineffectively, improperly, inefficiently, unproductively, and unsuccessfully. Ineffectively refers to something that does not produce the desired result or fails to achieve its objectives. Improperly suggests that something is not done in the correct way or according to the established rules. Inefficiently means that something is not done in the most efficient way possible, causing waste of time, resources, and energy. Unproductively and unsuccessfully both refer to something that does not yield any positive outcome or results. Overall, these words can be used interchangeably with non-functionally to describe something that is not up to par.