foolhardy
Concise Oxford English Dictionary © 2008 Oxford University Press:
foolhardy/ˈfuːlhɑːdi/
▶adjective (foolhardier, foolhardiest) recklessly bold or rash.
– derivatives
foolhardily adverb,
foolhardiness noun.
foolhardily adverb,
foolhardiness noun.
'foolhardy' also found in these Oxford entries:

