THESAURUS
heartlessly
apathetically, chickenheartedly, cold-bloodedly, coldheartedly, coldly, cravenly, cruelly, deadpan, dejectedly, despairingly, despondently, discouragedly, disheartenedly, disinterestedly, dispassionately, dispiritedly, downheartedly, dully, faintheartedly, forlornly, harshly, impassively, in cold blood, inclemently, inconsolably, indifferently, inexorably, like a coward, listlessly, mercilessly, numbly, phlegmatically, pitilessly, plucklessly, poltroonishly, relentlessly, remorselessly, ruthlessly, spiritlessly, spunklessly, uncompassionately, unconcernedly, uncourageously, undaringly, unemotionally, unfeelingly, unforgivingly, ungallantly, uninterestedly, unintrepidly, unmercifully, unpassionately, unremorsefully, unsympathetically, unvaliantly, unvalorously, unyieldingly, weakheartedly, with dry eyes