1. foolhardy
It would be foolhardy to ignore these warnings.
1) The brave man, if he be compared with the coward, seems foolhardy; and, if with the foolhardy man, seems a coward. 2) Hatred is blind, anger is foolhardy, and he who pours out vengeance risks having to drink a bitter draft. (Alexandre Dumas)
Английский слово "wariacki«(foolhardy) встречается в наборах:
negative character adjectives