The antonym of ‘diligent’ is ‘negligent.’
‘Diligent’ refers to someone who is careful and hardworking in their efforts, often demonstrating a strong sense of responsibility and attention to detail. On the other hand, ‘negligent’ describes someone who fails to take proper care in doing something, displaying a lack of concern or attention. While a diligent person goes above and beyond to ensure tasks are completed effectively, a negligent person tends to overlook important details or shirk responsibilities altogether. Understanding these contrasting terms can help illustrate the importance of dedication and commitment in various aspects of life.