Unproductive : অফলপ্রসূ; নিষ্ফলা;
Related Words
unpredictable  unproductive  See Words Also In
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Appropriate Prepositions
Aptitude for(স্বাভাবিক দক্ষতা, যোগ্যতা): He has no aptitude for public service.
Deprived of (বঞ্চিত): He was deprived of education due to extreme poverty.
Feed with (কোনো কিছু খাওয়া): They feed the cow with grass.
Look into (তদন্ত করা/অনুসন্ধান করা): I am looking into the matter.
Short of (অপর্যাপ্ত): I am running short of money.
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Idioms
At liberty (free-মুক্ত-adj.) They are at liberty to go anywhere.
Back and bally (জীবিকা, ভরণ পোষণ—n) Who will provide the increasing population with the required back and bally?
In black and white – (লিখিতভাবে) – Put forward your proposal in black and white.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.
White color job – (উচ্চ শ্রেনীর চাকরি, যেখানে শারীরিক কাজ নেই বললেই চলে- a job without manual labour) - He wants a white color job.