Meaning : Marked by or paying little heed or attention.
Example :
We have always known that heedless self-interest was bad morals; we know now that it is bad economics.
Heedless of danger.
Heedless of the child's crying.
Synonyms : unheeding
Taking heed. Giving close and thoughtful attention.
Heedful of the warnings.Meaning : Characterized by careless unconcern.
Example :
The heedless generosity and the spasmodic extravagance of persons used to large fortunes.
Reckless squandering of public funds.
Synonyms : reckless