A. Evident
B. Obvious
C. Explicit
D. Vague

Explanation:

The word lucid means clear, easy to understand, and very well explained.

In simple words: something that is bright, clear, and not confusing.

The opposite of lucid is vague, which means unclear, confusing, or not properly explained.

So, Vague is the correct antonym of Lucid.

Real-Life Example

Imagine two teachers explaining a lesson:

• One teacher explains everything clearly with simple examples → this is lucid teaching.
• Another teacher explains in a confusing way that students don’t understand → this is vague teaching.

Clear explanation = Lucid
Confusing explanation = Vague

Main Points for Exams

• Lucid means clear, logical, and easy to understand.
• It is often used for speech, writing, or explanations.
• Vague means unclear or not properly explained.
• Evident, Obvious, and Explicit are synonyms of lucid.
• Therefore, Vague is the correct antonym of Lucid.
• This type of question is common in PPSC, FPSC, CSS, PMS, NTS, IELTS, TOEFL, and other competitive exams.

Quick Memory Trick

❌ Lucid = Clear
🌫️ Vague = Not Clear

Clear ↔ Confusing
Lucid ↔ Vague ✔️