fruitfully, productively, profitably

productively, profligately, gainfully, pointlessly, inefficiently, ineffectively, purposelessly, unwisely, meaninglessly, ineffectually, endlessly, uselessly, resentfully, habitually, heedlessly, lazily, fruitlessly, destructively, passively, reflexively, impotently, perniciously, joylessly, rapaciously, conversely, invisibly, dementedly, intractably, neurotically, idly, frenetically, tediously, perpetually, fruitfully, sulkily, apathetically, prodigiously, feebly, incessantly, pitilessly, peevishly, usefully, parasitically, mindlessly, masochistically, injudiciously, excessively, complacently, inertly, ceaselessly, greedily, illogically, observably, foolishly, compulsively, remorselessly, needlessly, riskily, obsessively, restlessly, ignorantly, artlessly, impersonally, fecklessly, sweatily, interminably, repetitively, nefariously, unintelligently, sleeplessly, quixotically, inelegantly, thriftily, insecurely, gluttonously, vindictively, morosely, intrusively, often, laboriously, evilly, avariciously, frivolously, irresponsibly, lawlessly, idiotically, nonsensically, noxiously, aimlessly, furiously, unsympathetically, despairingly, wisely, scut work, heartlessly, piteously, dumbly, unnecessarily, extravagantly, unhelpfully, promiscuously, expensively

fruitlessly, unprofitably