Select the most appropriate ANTONYM of the highlighted word.

The negligent attitude of the cops was criticised.

attentive

The most appropriate antonym of the highlighted word negligent is attentive.

• Negligent means "failing to take proper care in a way that could lead to harm or injury."
• Attentive means "giving careful attention to something."

The other words do not have the same meaning as negligent, so they are not its antonyms.

• Sloppy means "careless or untidy."
• Persistent means "continuing or repeating in spite of difficulty or opposition."
• Bored means "feeling weary or uninterested."