Explanation:

The word lackluster means something that is not exciting, not bright, or not impressive.

In simple words: boring, weak, or without energy.

So, the synonym of lackluster is dull.

Real-Life Example

• The movie was lackluster and failed to impress the audience.
• The movie was dull and failed to impress the audience.

Lackluster = Dull

Why “dull” is correct

• Lackluster means lacking energy or excitement.
• Dull means not interesting or boring.
• Both words describe something unexciting.

Main Points for Exams

• Lackluster means boring or without shine/energy.
• Dull is its correct synonym.
• It can describe performances, events, or personalities.
• Therefore, Dull is the correct answer.
• Frequently asked in PPSC, FPSC, CSS, PMS, NTS, IELTS, and TOEFL vocabulary tests.

Quick Memory Trick

😐 Lackluster = No Energy / No Shine
🧠 Dull = Same Meaning

Bright ↔ Interesting
Unexciting ↔ Lackluster = Dull ✔️