Synonyms and related words :
abandon, accidia, acedia, apathy, ataraxia, ataraxy, callowness, careless abandon, carelessness, casualness, childishness, cursoriness, desperateness, detachment, devil-may-careness, disinterest, dispassion, disregard, disregardfulness, easiness, easygoingness, forgetfulness, furiousness, haste, hastiness, heedlessness, hotheadedness, hurriedness, immaturity, impatience, impetuosity, impetuousness, imprudence, impulsiveness, inadvisability, inattention, inconsiderateness, inconsideration, incuriosity, indifference, indiscreetness, indiscretion, indiscrimination, inexcitability, inexpedience, injudiciousness, insouciance, irrationality, lack of affect, lack of foresight, lackadaisicalness, laziness, listlessness, mindlessness, negligence, nonchalance, oblivion, offhandedness, overeagerness, overenthusiasm, overhastiness, overzealousness, perfunctoriness, pococurantism, pompousness, precipitance, precipitancy, precipitateness, precipitation, precipitousness, puerility, quickness, rashness, reasonlessness, regardlessness, senselessness, sloth, sprezzatura, stuffiness, suddenness, tactlessness, thoughtlessness, unanxiousness, unconcern, unheedfulness, unintelligence, unmindfulness, unpreparedness, unreadiness, unreason, unreasonableness, unsensibleness, unsolicitousness, unsolicitude, unsoundness, unthinkingness, unthoughtfulness, unwisdom, unwiseness, wantonness, wildness, witlessness