Unavailing : নিরর্থক, নিষ্ফল;
Related Words
unavailing  unfailing  unfailingly  unfeeling  unveiling  See Words Also In
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Appropriate Prepositions
Attain to (লাভ করা): He will not attain to his objective so soon.
Concerned for (উদ্বিগ্ন): The parents are concerned for their growing children.
Play with (খেলা করা/ মজা করা): I shall not play with him.
Rely on (নির্ভর করা): We should not rely on a lazy man.
Subject to (সাপেক্ষে): The man was appointed subject to the approval of the chairman.
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Idioms
Hold water (ধোপে টেকা): This policy will not hold water in this situation.
Lose one’s heart (প্রেমে পড়া) — He lost his heart to the girl.
Pros and cons (খুঁটিনাটি): You should consider the pros and cons of the system.
Short temper (রগচটা)— He is a man of short temper.
Up-to-date (আধুনিক) - Now-a-days ladies are very up to date.