Unassailably : প্রশ্নাতীত; সন্দেহাতীত;
Related Words
unassailable  unassailably  unsalable  unsaleable  unscalable  unsolvable  See Words Also In
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Appropriate Prepositions
Competent for(যোগ্য): He is not competent for the post.
Curse for (অভিশাপ দেয়া): If he ever mistreats my parents, I will certainly curse him for it.
Despair of (নিরাশ হওয়া): Do not despair of further improvement.
Inquire of, about, into, after (অনুসন্ধান করা): Roma inquired of me about my father’s health. The pope will inquire into the cause of fire. Mehjabin inquired after her friends.
Popte in, to (মার্জিত): We must be popte in our dealings. One should be popte to
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Idioms
At times (মাঝে মাঝে): He at times comes here.
As ill-luck would have it (unfortunately- দুর্ভাগ্যবশত) A child was born to them but, as ill-luck would have it, it died when it was eight days old.
Base born (নীচ বংশজাত, খারাপ জাত—adj.) He is a base born person; I cannot go along well with him.
Lump sum (এক কালীন) — He gave us lump sum money.
To the brim (কানায় কানায়) - The river was full to the brim.