Select the most appropriate ANTONYM of the given word.
Anxious

Correct option is B

Option (b) is the correct antonym of the given word.
Anxious refers to a state of uneasiness or worry about future events or uncertainties.
Synonyms: nervous, apprehensive, and concerned.
Antonyms: calm, relaxed, and composed, unconcerned.
Meanings of all options-
 Unconcerned means not worried, interested, or involved.
 Considerate means having or showing consideration for others.
 Stealthy means moving or acting in a quiet or secret way.
 Haughty means having or showing an attitude of superiority and arrogance.