carelessness (n.)

• abandon
• absentmindedness
• acedia
• aloofness
• apathy
• ataraxia
• boredom
• caprice
• casualness
• detachment
• disinterest
• disinterestedness
• dispassion
• disregard
• distraction
• dowdiness
• easiness
• easygoingness
• flightiness
• flippancy
• forgetfulness
• frivolousness
• furiousness
• giddiness
• grubbiness
• haste
• hastiness
• heedlessness
• hurriedness
• impassiveness
• impassivity
• impetuosity
• impetuousness
• impotence
• imprecision
• inadvertence
• inadvertency
• inattention
• inattentiveness
• inconsiderateness
• inconsideration
• indifference
• insouciance
• laxity
• laxness
• laziness
• leniency
• levity
• listlessness
• looseness
• loosening
• messiness
• mindlessness
• negligence
• nonchalance
• nonobservance
• oblivion
• obliviousness
• overindulgence
• permissiveness
• precipitance
• precipitancy
• precipitateness
• precipitation
• precipitousness
• recklessness
• relaxation
• remissness
• seediness
• shabbiness
• shallowness
• shoddiness
• slackness
• slatternliness
• sloppiness
• sloth
• slovenliness
• sluttishness
• softness
• sordidness
• squalidness
• squalor
• stolidity
• superficiality
• tackiness
• tactlessness
• tawdriness
• thoughtlessness
• unawareness
• unconcern
• unconsciousness
• unmindfulness
• unrestraint
• unthoughtfulness
• untidiness
• unwariness
• wantonness
• weakness
• wildness
• withdrawal