1. the quality or state of not paying close attention; lack of focus or concentration
Usage: uncountable noun; commonly used in educational and professional contexts

Examples

• The student's inattentiveness during the lecture caused him to miss important information.
• Her inattentiveness while driving made the situation dangerous.
• The teacher addressed the class about inattentiveness during test-taking.
• His inattentiveness to detail resulted in several errors in the report.
• Inattentiveness in meetings can lead to miscommunication among team members.
• The child's inattentiveness improved after he started taking breaks during homework.
• Chronic inattentiveness may be a sign of an underlying attention disorder.