English to English
1. Inattentive to duty; careless; neglectful; indifferent.
2. marked by defiant disregard for danger or consequences
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
3. characterized by careless unconcern
the heedless generosity and the spasmodic extravagance of persons used to large fortunes|reckless squandering of public funds