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