Antonym of Key is ____. A. Solution B. Strangers C. Class D. Mystery Explanation: Mystery implies lack of solution, opposite of key.
Antonym of Kernel is ____. A. Nucleus B. Core C. Surroundings D. Bell-sound Explanation: Surroundings are outer parts, opposite of core kernel.
Antonym of Juxtaposition is ____. A. Unity B. Opposition C. Separation D. Confirmation Explanation: Separation contrasts with placement side by side.
Antonym of Juvenile is ____. A. Youthful B. Control C. Mature D. Blind Explanation: Mature refers to adulthood, opposite of juvenile.
Antonym of Just is ____. A. Fair B. Unjust C. Outflow D. Uniform Explanation: Unjust means unfair, opposite of just.
Antonym of Jurisdiction is ____. A. Independent B. Young C. Nucleus D. Independence Explanation: Independence implies freedom from authority, opposite of jurisdiction.
Antonym of Judicious is ____. A. Prudent B. Young C. Nucleus D. Unwise Explanation: Unwise means lacking judgment, opposite of judicious.
Antonym of Jubilant is ____. A. Sad B. Unhappy C. Gloomy D. Ecstatic Explanation: Gloomy reflects sadness, opposite of jubilant joy.
Antonym of Jovial is ____. A. General B. Sagacity C. Gloomy D. Aloof Explanation: Gloomy means sad, opposite of cheerful jovial.
Antonym of Jocular is ____. A. Humorous B. Professional C. Serious D. Cheerful Explanation: Serious is opposite of joking or jocular.