Synonyms of reckless

Adjective

1. foolhardy, heady, rash, reckless, bold (vs. timid)

usage: 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"-Macaulay; "a reckless driver"; "a rash attempt to climb Mount Everest"

2. heedless, reckless, careless (vs. careful)

usage: characterized by careless unconcern; "the heedless generosity and the spasmodic extravagance of persons used to large fortunes"- Edith Wharton; "reckless squandering of public funds"

Definition and meaning of reckless (Dictionary)