efficiently, expeditiously, with efficiency

ineffectively, poorly, incompetently, efficiently, inadequately, inconsistently, expensively, unprofitably, unproductively, productively, profligately, ineptly, optimally, leanly, cheaply, properly, incompletely, irregularly, unevenly, irresponsibly, haphazardly, unreliably, wastefully, sloppily, excessively, unethically, insecurely, punitively, competently, unequally, shoddily, decently, unsatisfactorily, inequitably, accountably, prudently, unprofessionally, badly, chaotically, inexpensively, illogically, unsafely, frivolously, appropriately, usefully, adequately, profitably, sensibly, chronically, erratically, unnecessarily, lavishly, carelessly, effectively, frugally, grossly, imprudently, transparently, infrequently, correctly, needlessly, recklessly, inexpertly, unwisely, departmentally, shabbily, bureaucratically, wantonly, conservatively, stupidly, sparsely, horribly, appallingly, exorbitantly, judiciously, defectively, uselessly, thriftily, insensitively, incorrectly, opaquely, irrationally, legitimately, internally, often, ludicrously, sluggishly, diffusely, immorally, questionably, extravagantly, systematically, abysmally, sanely, atrociously, wretchedly, differently, impersonally, reprehensibly, conversely, unacceptably, deplorably

piddle, piddle away, trifle, wanton, wanton away, waste