Synonyms and related words :
by halves, defectively, deficiently, dissatisfactorily, faultily, imperfectly, in half measures, in installments, inadeptly, inadmissibly, inaptly, incapably, incompetently, incompletely, inefficiently, ineptly, inexpertly, insufficiently, intolerably, objectionably, partially, poorly, unacceptably, unaptly, undeftly, undesirably, undexterously, unfacilely, unfitly, ungratifyingly, unproficiently, unsatisfactorily, unsatisfyingly, unskillfully, unsubstantially, unsuitably