Vocabulary and Synonyms

Option (2) is the answer as 'empirical' means relying or based solely on experiment and observation rather than theory.

Protean means versatile, adaptable, or capable of changing form frequently - exactly what flexible means. Planned implies pre-arrangement, soft refers to texture, and serious means solemn - none capture the essence of versatility and adaptability.

Weird and strange are synonyms meaning unusual, peculiar, or not normal. Popular means well-liked, gentle means mild, and strong means powerful - none of these convey the meaning of strange or unusual.

Defame means to damage someone's reputation or character, often through false accusations. Slander is specifically spoken defamation, making it the correct synonym. Salute means to greet, dream means to envision during sleep, and divide means to separate - none relate to damaging reputation.

Famous means well-known or widely recognized. Celebrated is a direct synonym meaning widely honored or acclaimed. The other options are unrelated - unknown means not known, talkative means speaking a lot, and jovial means cheerful.

Ban means to forbid or prohibit something officially. Prohibit is a direct synonym meaning to formally forbid or prevent. The other options are unrelated - blame is to assign fault, press is to push, and provide is to supply.

Incentive means something that motivates or encourages action, often a reward. Stimulus is a direct synonym meaning something that causes activity or provides motivation. Steady means stable, pious means religiously devoted, and docile means obedient - none relate to motivation.

Limit as a noun means a boundary or the maximum extent. Edge is the closest option meaning the outer boundary of something. The other options are spatial opposites - centre, interior, and surface don't convey the concept of a boundary or restriction.

Vibrate means to shake or oscillate rapidly. Quiver is a direct synonym meaning to tremble or shake slightly with rapid motion. Resonate means to echo or amplify sound, which is related but different. Walk and jump are unrelated actions.

Lucid means clear, easy to understand, or transparent in expression. Transparent is a direct synonym meaning easily seen through or clear. Smooth means even, noisy means loud, and vague means unclear - the opposite of lucid.

Unaware means not conscious or lacking knowledge of something. Oblivious is a direct synonym meaning unaware or unmindful. Note: Option A has a typo - 'Concious' should be 'Conscious', but it means the opposite of unaware. Awake means alert, and weary means tired.

Various means of different kinds or types. Different is a direct synonym meaning not the same or distinct. The other options are opposites or unrelated - same means identical, vague means unclear, and single means one.

Fast means moving or operating quickly. Swift is a direct synonym meaning quick or rapid. The other options are opposites or unrelated - slow is the opposite, tight means firm, and lazy means not active.

Appease means to calm, pacify, or satisfy someone. Pacify is a direct synonym meaning to soothe or calm someone down. Ooze means to flow slowly, pray means to communicate with deity, and rouse means to awaken or excite - the opposite of appease.

Joke means something said or done to cause laughter. Jest is a direct synonym meaning a joke or witty remark. The other options are unrelated - mourn means to express grief, cry means to shed tears, and jump means to propel oneself upward.