foolhardy(marked by unthinking recklessness with disregard for danger) adjective [UK: ˈfuːl.hɑː.di] [US: ˈfuːl.ˌhɑːr.di]He's foolhardy. = È imprudente.
rash(acting too quickly without considering the consequences and risks, see also: hasty) adjective [UK: ræʃ] [US: ˈræʃ]