Select the most appropriate ANTONYM of the given word.

INNOCUOUS

harmful

The most appropriate antonym of the word "innocuous" is harmful.

• Innocuous means "not harmful or injurious."
• Harmful means "causing or capable of causing harm."

The other words do not have the same meaning as harmful.

• Indifferent means "not interested or concerned."
• Harmless means "not able to cause harm."
• Innocent means "not guilty of any crime or offense."