Unsubstantiated : অপ্রমাণিত; অপ্রমাণসিদ্ধ;
Related Words
unsubstantial  unsubstantiality  unsubstantiated  See Words Also In
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Appropriate Prepositions
Appropriate to(যোগ্য): His answer is appropriate to the question.
At lunch (দুপুরের খাবারে): They were talking so much at lunch that their food went cold.
Authority on(বিশেষজ্ঞ পন্ডিত): Kamal was an authority on English literature.
Derive from (উৎসারিত হওয়া): The one has been derived from the poem.
Remedy for (প্রতিকার): There is no remedy for his misbehavior.
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Idioms
Art and part (অভিসন্ধি ও সম্পাদন) We have no art and part in his affairs.
Now and then (মাঝে মাঝে): He comes here now and then.
Seventh heaven – (মহাখুশী) – I was in the seventh heaven when I heard the news of my BCS final result.
Stone’s throw (অতি নিকটে): Our school is at a stone’s throw from our house.
See to (বিবেচনা করা)— Can you see to it that everyone gets a copy of this memo?