Select the most appropriate ANTONYM of the given word.

Infirm

Strong

The most appropriate antonym of the word infirm is strong.

• Infirm means "not physically or mentally strong, especially through age or illness."
• Strong means "having a lot of physical or mental power; powerful."

The other words do not have the opposite meaning of infirm.

• Weak means "not having much physical or mental strength."
• Frail means "physically weak or delicate."
• Feeble means "lacking physical or mental strength."