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Grandiloquent
[গ্র্যান্‌ডিলাকোআন্‌ট্‌]
(adjective)

- Synonyms: Bombastic (আড়ম্বরপূর্ণ), Magniloquent (শব্দ, বক্তৃতার ক্ষেত্রে বাগাড়ম্বরপূর্ণ), Pretentious (আত্মাভিমানী; আত্মশ্লাঘা), Brag (দম্ভোক্তি) Rand (গলাবাজি)।

- Antonyms: Unpretentious (নিরহঙ্কার), Concise (সংক্ষিপ্ত), Short (সার), Pragmatic (প্রায়োগিক), Simple (সাধারণ)।

- English Meaning: A grandiloquent style or way of using language is complicated in order to attract admiration and attention, especially in order to make someone or something seem important.

- Bangla Meaning: বাগাড়ম্বরপূর্ণ: a grandiloquent style.

- Other Forms: Grandiloquence [গ্র্যান্‌ডিলাকোআন্‌স্‌] (noun).

Example Sentence:
1. Her speech was full of grandiloquent language, but it contained no new ideas.
2. A heavyweight champion who was famous for his entertaining grandiloquence prior to every match.

So, the correct answer is Unpretentious.

Source: LiveMCQ Vocabulary booster.