not caring or worrying about the possible bad or dangerous results of one's actions;hasty and careless
"foolhardy enough to try to seize the gun from the hijacker"
"became the fiercest and most reckless of partisans"
"a reckless driver"
"a rash attempt to climb Mount Everest"
"the heedless generosity and the spasmodic extravagance of persons used to large fortunes"
"reckless squandering of public funds"
He was reckless and..could not look after money.
出自： G. Sayer
Suddenly reckless she chose..a vintage they could not afford.
出自： M. Keane