airy careless casual cursory degage disregardant disregardful distracted distrait easygoing flippant forgetful free and easy heedless inadvertent inattentive inconsiderate incurious indifferent inobservant insouciant lazy mindless negligent oblivious offhand perfunctory reckless regardless respectless tactless thoughtless unaccommodating uncomplaisant uncooperative undiplomatic unheeding unhelpful unmarking unmindful unnoticing unnoting unobliging unobservant unobserving unprepared unready unremarking unsolicitous untactful unthinking unthoughtful