Unsolvable : অসমাধানযোগ্য; সমাধানের অতীত; অসমাধেয়;
Related Words
unassailable  unassailably  unsalable  unsaleable  unscalable  unsolvable  See Words Also In
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Appropriate Prepositions
Argue against (বিপক্ষে বলা): She argued against the bill.
Attentive to(মনোযোগী): He is attentive to his business.
Change into (পরিবর্তিত হওয়া): At what point does boiling water change into vapor.
Greed for (লোভ): He has an indomitable greed for wealth.
Similar to (সদৃশ): My T-shirt is similar to yours.
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Idioms
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.
Seventh heaven – (মহাখুশী) – I was in the seventh heaven when I heard the news of my BCS final result.
Under age (অপ্রাপ্ত বয়স্ক)- He could not cast his vote because he was under age.
Yellow dog (হীন ব্যক্তি) - A yellow dog is always hated by all.