arbitrary capricious careless disregardful forgetful heedless ill-advised ill-considered ill-contrived ill-devised ill-gauged ill-judged impolitic imprudent inadvertent inadvisable inconsiderate indiscreet inexpedient injudicious insensate irrational mindless misadvised misguided myopic reasonless reckless respectless senseless shortsighted thoughtless unaccommodating unadvised uncalculating uncomplaisant unconsidered uncooperative undiscerning unforeseeing unguarded unheedful unhelpful unmindful unobliging unreasonable unreasoning unreflecting unreflective unseeing unsensible unsound unthinking unwise witless