Unimaginable : অভাবনীয়, অচিন্তনীয়;
Related Words
unimaginable  unknowable  unseasonable  See Words Also In
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Appropriate Prepositions
Cause of(কারণ): Industry is the cause of your success.
Certain of(নিশ্চিত): Jamal is certain of his success.
Eager for, about (একাগ্র): The students for this school are eager for knowledge. The teacher is eager about the success of his students.
Good for, at (ভাল): This man is good for nothing. He is good at English.
Indispensable to (অত্যাবশ্যকীয়): Your help is indispensable to him.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Dead against (তীব্র বিরোধী - strongly opposed to): I am dead against corruption.
Red letter day (স্মরণীয় দিন): The 16th December is a red letter day for us.
To go to the dogs (গোল্লায় যাওয়া)- He has gone to the dogs by keeping evil company.
Take into account (বিবেচনা করা): Your activities should be taken into account.