rash bold daring irrational madcap precipitate wild adventurous audacious brash determined fiery foolhardy frenzied furious harebrained hasty headlong headstrong heedless hotheaded immature impetuous improvident imprudent impulsive incautious indiscreet injudicious insuppressible overhasty passionate premature reckless slapdash temerarious thoughtless unconsidered unguarded unthinking unwary venturesome venturous precipitous sudden careless rushed abrupt hurried cursory gadarene flying unwise speedy reactive misjudged quick perfunctory hectic irresponsible superficial foolish rushing snatched misguided spontaneous overbold unplanned violent fierce ardent eager unreasoned impassioned impromptu vehement unbridled unrestrained unreflecting unpremeditated fervid swift unexpected restive negligent inconsiderate daredevil mindless unheeding inattentive regardless unmindful impolitic neglectful remiss tactless senseless inadvertent unobservant kamikaze