reckless
(adjective)
adjective
1. indifferent to danger or the consequences.
- became the fiercest and most reckless of partisans
- a reckless driver
Similar word(s): bold, foolhardy, heady, rash
2. careless or heedless; headstrong or rash.
- reckless squandering of public funds
Similar word(s): careless, heedless