1. the quality or state of being attentive and careful; close attention to something

Examples

• The driver's heedfulness to traffic signs prevented an accident.
• With heedfulness and patience, she completed the delicate repair work.
• The teacher appreciated the student's heedfulness during the safety demonstration.
• Heedfulness of the warning signs could have saved them from trouble.
• His heedfulness to detail made him an excellent proofreader.
• The heedfulness required for this task cannot be overstated.