Definitions

1. adjective

lacking care or attention to safety; taking risks in a careless or irresponsible way

“The driver was reckless on the highway, speeding past other vehicles.”

2. noun

a lack of concern for safety or the rights of others

“The reckless behavior of the company led to a significant public backlash.”

3. verb

to act in a reckless or irresponsible way; to take risks without thinking of the consequences

“She recklessly spent her entire inheritance on a series of get-rich-quick schemes.”