1. in a way that shows a lack of care, attention, or concern for consequences or others

Examples

• He heedlessly drove through the red light without checking for traffic.
• She heedlessly spent all her savings without thinking about the future.
• The hikers heedlessly ignored the warning signs about the dangerous trail.
• He heedlessly made promises he had no intention of keeping.
• The company heedlessly dumped waste into the river.
• She heedlessly interrupted the meeting multiple times.
• They heedlessly rushed into the decision without consulting anyone.