Inefficiently

(adv.) In an inefficient manner.

Thesaurus Entries

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