Inefficacious : নিষ্ফল; ফল উৎপাদনে অক্ষম
Related Words
ineffcacious  inefficacious  inefficacy  inefficiencies  inefficiency  inefficient  infections  infectious  inofficial  See Words Also In
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Appropriate Prepositions
Zeal for (উৎসাহ): Forhad has great zeal for cricket.
Covetous of(লোভী হওয়া): He is covetous of wealth.
Fail in (ব্যর্থ হওয়া): He failed in getting internet connection in his room.
Innocent of (নির্দোষ): The maid servant was proved innocent of the alleged theft.
Long for (আশা করা/কামনা করা): He longed for name and fame.
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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.
Ins and out (খুঁটিনাটি): I know ins and outs of this file.
Pack of lies (ডাঁহা মিথ্যা)—He told pack of lies to prove himself innocent.
Swan-song (অন্তিম গীত, শেষ কর্ম): This writing is the swan song of Kazi Nazrul islam.
Turn a deaf ear to (pay no attention, প্রত্যাখান করা) —He turned a deaf ear to my proposal.