Unsubstantial : অসার; অবাস্তব; কম্পিত;
Related Words
unsubstantial  unsubstantiality  See Words Also In
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Appropriate Prepositions
Absorbed in(মগ্ন): I am absorbed in my study.
Acceptable to(গ্রহণযোগ্য): Such behavior is just not acceptable in this school.
Appointment with (সাক্ষাতের সময়): He has an appointment with the minister at 10:00 am.
Enter into (আলোচনা করতে আরম্ভ করা): Let’s not enter into details at this stage.
Search for (সন্ধান করা): The police searched the halls of residence for arms.
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Idioms
At liberty (free-মুক্ত-adj.) They are at liberty to go anywhere.
Lump sum (এক কালীন) — He gave us lump sum money.
Moot point (অমীমাংসিত বিষয়): Dowry system is still a moot point in Bangladesh.
Pandora’s box (আপাতঃ দৃষ্টিতে ভালো মনে হলেও আসলে ভালো নয়)—His words proved to be Pandora’s box.
Pass away (মারা যাওয়া)— He passed away last night.