adjective. Acting or done with a lack of care or caution; careless or irresponsible.

Not recking; careless; heedless; inattentive: in a mild sense.

Not recking of consequences; desperately heedless, as from folly, passion, or perversity; impetuously or rashly adventurous.

Synonyms Enterprising, Rash, etc. (see adventurous), incautious, unwary, unconcerned, indifferent, thoughtless. See list under rash.

adjective. Inattentive to duty; careless; neglectful; indifferent.

adjective. Rashly negligent; utterly careless or heedless.

adjective. Careless or heedless; headstrong or rash.

adjective. Indifferent to danger or the consequences.

adjective. marked by defiant disregard for danger or consequences

adjective. characterized by careless unconcern

"Other motorcyclists, more assertive and impatient the word reckless came to mind, began snaking their way in the narrow space between lanes of stopped traffic, as is common here."

careless  rash  

bold  careless  

recklessness  

necklace  

aggressive  bold  desperate  eager  foolish  

accident-prone  adventuresome  agile  airy  apathetic