In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.
Feeble

The correct answer is "Weak", as feeble refers to lacking strength or energy.
· Synonyms: Weak, Frail, Delicate, Powerless
· Antonyms: Strong, Robust, Sturdy, Healthy
Meanings of other
· Strong → Having great physical power (He is strong enough to lift the box).
· Robust → Full of strength and health (She has a robust immune system).
· Sound → In good condition or health (His argument was logically sound).
Thus, the correct sentence would be: "After the illness, he was too feeble to walk."