Unsubstantiated : অপ্রমাণিত; অপ্রমাণসিদ্ধ;
Related Words
unsubstantial  unsubstantiality  unsubstantiated  See Words Also In
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Appropriate Prepositions
Entitled to (অধিকারী): He is entitled to a reward for honesty.
Grateful to (কৃতজ্ঞ): We should be grateful to our teachers.
Indifferent to (উদাসীন): Everybody is indifferent to my problem.
Sick of (ক্লান্ত): He is sick of this idle life.
Taste of (স্বাদ; অভিজ্ঞতা): They have had some taste of problems.
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Idioms
Breathe one’s last (decease, die- শেষ নিঃশেষ ত্যাগ করা, মরে যাওয়া) The man breathed his last in his native village.
Bad bargain (purchasing at a high price-বেশি দামে কেনা-n) You had a bad bargain of the watch I see.
Gain Ground (সুবিধা পাওয়া): The wise are said to gain the ground in the long run.
Give in (বশ্যতা স্বীকার করা): We will never give in to our enemies.
Put up with (সহ্য করা - tolerate): I could not put up with his behavior.