mushiness, indolence, disuse, scorn, remissness, nonperformance, muddiness, drippiness, wateriness, default, soupiness, sentimentality, slight, disrespect, careful, procrastination, unkemptness, abandon, slackness, mawkishness, failure, delinquency, omission
rashness (part of speech: noun)
motivelessness (part of speech: noun)
arbitrariness, spasticity, fleetingness, volatility, whimsicality, ambivalence, caprice, indecisiveness, randomness, waywardness, impulsiveness, flightiness, irregularity, fancifulness, fickleness, haphazardness
recklessness (part of speech: noun)
slovenliness (part of speech: noun)
incuriosity (part of speech: noun)
neglect (part of speech: noun)
inattention (part of speech: noun)
apathy, befuddlement, lack of interest, disregardfulness, disregard, dreaminess, absent-mindedness, heedlessness, inadvertence, obliviousness, unconsciousness, inattention, disinterestedness, negligence, incuriosity, distraction, thoughtlessness, detachment, indifference, lapse, oversight, preoccupation, unconcern, inobservance, absence, forgetfulness, aloofness
- Whereupon the beggar drew his bow with seeming carelessness and split the wand with his shaft. - "Robin Hood", J. Walker McSpadden.
- The Prussian passed for a very virtuous court in comparison with the other courts of Germany; but the tone towards women, and the carelessness with which the most doubtful connexions were treated, were there also very great. - "Pictures of German Life in the XVIIIth and XIXth Centuries, Vol. II.", Gustav Freytag.
- To Stainton's ear the use of one's first Latin verb translated was not merely schoolgirl carelessness and want of variety of phrase; it was an accurate expression of her abounding capacity for intense affection, her splendid fortune of emotion and her equally splendid generosity in its disposal. - "Running Sands", Reginald Wright Kauffman.