Inefficiency : অনৈপূণ্য, অযোগ্যতা, অদক্ষতা, অপটুত্ব
Related Words
inefficiencies  inefficiency  See Words Also In
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Appropriate Prepositions
Ashamed of(লজ্জিত): Nandini was ashamed of his wrong-doing.
Conform to (নিয়মনীতি অনুসরণ করা): The employees have to conform to a strict dress code.
Inquire into (খতিয়ে দেখা): The police officer will inquire into the matter.
Pleased with (সন্তুষ্ট): Shamim is pleased with all his employees.
Quick at (চটপটে): A cashier must be quick at figures.
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Idioms
After all - (সব কথার পরেও): I rang and told her I couldn't come after all.
All along - (সব সময়): I was present in the meeting all along.
Birds of a feather (persons of like disposition-একই পর্যায়ের লোক) Bird’s of a feather flock together.
Laughing stock (হাসির পাত্র)— He is a laughing stock to all.
To the point (সঠিক) - The boy answered the question to the point.