Inefficiency : অনৈপূণ্য, অযোগ্যতা, অদক্ষতা, অপটুত্ব
Related Words
inefficiencies  inefficiency  See Words Also In
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Appropriate Prepositions
Bridge over (সেতু): The only entrance to Allahabad in that direction was by a bridge over the Jumna.
Faithful to (বিশ্বস্ত): The dog is very faithful to its master.
Pleased with (সন্তুষ্ট): Shamim is pleased with all his employees.
Regard for (সম্মান): Good boys have great regard for their teachers.
Take pity on (দয়া করা): Take pity on the helpless people.
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Idioms
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
Fall flat (ফলপ্রসূ না হওয়া): This business is going to fall flat.
Lion’s share (বড় মাপের অংশ): He took the lion’s share of the profit.
Slow coach (অলস): You cannot expect much from a slow coach.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.