1. (a.) Not considerate; not attentive to safety or to propriety; not regarding the rights or feelings of others; hasty; careless; thoughtless; heedless; as, the young are generally inconsiderate; inconsiderate conduct.

2. (a.) Inconsiderable.

airy arbitrary boorish brash caddish capricious careless casual coarse crude cursory degage disregardant disregardful easygoing flippant forgetful free and easy hasty heedless hotheaded ill-advised ill-bred ill-considered ill-contrived ill-devised ill-gauged ill-judged impolitic imprudent inadvertent inadvisable incautious indifferent indiscreet inexpedient injudicious insensate insensitive insouciant intolerant irrational lazy loutish louty madcap mindless misadvised misguided myopic nasty oblivious offensive offhand perfunctory rash reasonless reckless regardless respectless rude senseless sharp shortsighted tactless thoughtless unaccommodating unadvised uncalculating uncaring unceremonious uncomplaisant unconcerned unconsidered uncooperative undiplomatic undiscerning unfeminine unforeseeing ungenteel ungentle ungentlemanly ungracious unguarded unheedful unheeding unhelpful unladylike unmindful unobliging unprepared unready unreasonable unreasoning unrefined unreflecting unreflective unseeing unsensible unsolicitous unsound unsympathetic untactful unthinking unthoughtful unwise vulgar witless