adj. 25B6; adjective RECKLESS, rash, irresponsible, impulsive, hot-headed, impetuous, daredevil, devil-may-care, death-or-glory, madcap, hare-brained, precipitate, hasty, overhasty; poetic/literary temerarious.
prudent.
FOOLHARDY
Meaning of FOOLHARDY in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012