unsatisfactorily
Definitions
In a manner that fails to meet requirements or expectations.
In a way that is not good enough or inadequate.
Examples
The project was completed unsatisfactorily, failing to meet the basic requirements set by the client.
The student performed unsatisfactorily on the final exam, resulting in a lower grade than expected.
Synonyms
poorly inadequately subpar deficiently insufficiently badly unacceptably
Antonyms
satisfactorily excellently admirably perfectly adequately superbly well