1. not paying attention; failing to concentrate or focus

Examples

• The inattentive driver ran through the red light.
• She was inattentive during the lecture and missed important information.
• His inattentive behavior in class concerned his teacher.
• The waiter was inattentive and forgot our order twice.
• Being inattentive to details can lead to costly mistakes.
• The child became inattentive after sitting still for too long.