Select the most appropriate antonym of the given word. Pernicious

Explanation:

Pernicious means very harmful or destructive.

So, its opposite (antonym) will be a word that means harmless.
👉 Innocuous means not harmful / harmless, hence it is the correct answer.

Why others are incorrect:

• Harmful ❌ → same meaning (synonym)
• Virulent ❌ → very harmful or poisonous (synonym)
• Noxious ❌ → toxic or harmful (synonym)

Extra Facts:

• Pernicious is often used for things that cause gradual or hidden damage
  • Example: Pernicious habits like smoking
• Innocuous comes from Latin meaning “not harmful”

Example Sentence:

• The chemicals used were innocuous and safe for humans.