Unquestioned : অক্ষুণ্ণ; অজিজ্ঞাসিত; অ-বিতর্কিত; অসংশয়িত;
Related Words
unaccustomed  unextended  unquestioned  unstained  unstinted  See Words Also In
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Appropriate Prepositions
Abhorrence of (ঘৃণা): Everyone should have abhorrence of a par.
Adequate to(সমানুপাতিক): The salary, he gets, is not adequate to the volume of work he has to do.
Attain to (লাভ করা): He will not attain to his objective so soon.
Delegate to (প্রতিনিধি): Nazrul welcomed the delegates to the new conference.
Relevant to (প্রাসঙ্গিক): Your answer is not exactly relevant to my question.
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Idioms
Bear hard upon (behave rudely-নির্দয়ভাবে ব্যবহার করা - V) Never bear hard upon your servants.
In no time (শীঘ্র): He will finish the work in no time.
Pros and cons (খুঁটিনাটি): You should consider the pros and cons of the system.
Silver tongue (মিষ্টভাষী)- He is a man of silver tongue.
To the letter (in all details, অক্ষরে অক্ষরে) —Follow my advice to the letter.