Unassailably : প্রশ্নাতীত; সন্দেহাতীত;
Related Words
unassailable  unassailably  unsalable  unsaleable  unscalable  unsolvable  See Words Also In
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Appropriate Prepositions
Depend on (নির্ভর করা): Presently, the students depend on/upon guide books.
Hit upon (পরিকল্পনা নেয়া): Rahim hit upon a new plan.
Long for (আশা করা/কামনা করা): He longed for name and fame.
Look after (দেখাশুনা): He looks after me.
Penalty for, with (দণ্ড, জরিমানা): She has paid the penalty for the misuse of power with two years in prison.
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Idioms
At a standstill (নিশ্চল, অচলাবস্থায়-adj.) The discussion is now at a standstill.
Crocodile tears (মায়াকান্না): He shed crocodile tears at our misery.
Give in (বশ্যতা স্বীকার করা): We will never give in to our enemies.
In no time (শীঘ্র): He will finish the work in no time.
Nip in the bud (অঙ্কুরে বিনষ্ট হওয়া): All his hopes were nipped in the bud.