airy apathetic ataractic blase boorish caddish careless casual coarse crude cursory degage devil-may-care disinterested dispassionate disregardant disregardful easygoing flippant forgetful free and easy heedless ill-bred inattentive inconsiderate incurious indifferent inexcitable insensitive insouciant lackadaisical lazy listless loutish louty mindless nasty negligent nonchalant oblivious offensive offhand perfunctory pococurante reckless regardless respectless tactless thoughtless turned-off unanxious unconcerned undiplomatic undiscriminating unfeminine ungenteel ungentle ungentlemanly unheedful unheeding uninterested unladylike unmindful unprepared unready unrefined untactful unthinking vulgar