Unavailing : নিরর্থক, নিষ্ফল;
Related Words
unavailing  unfailing  unfailingly  unfeeling  unveiling  See Words Also In
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Appropriate Prepositions
Authority over (কর্তৃত্ব, আধিপত্য): She has no authority over his growing daughters.
Bask in(রোদ পোহানো): The boys and girls are basking in the sun right now.
Defend against (রক্ষা করা): We will defend our country against all enemies.
Hunger for (আকাঙ্কা): The teacher has a great hunger for knowledge.
Refer to (সিদ্ধান্তের জন্য প্রেরণ করা): The matter was referred to the Chairman for a decision.
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Idioms
Bad names (গালমন্দ—n) He called the man bad names.
Base born (নীচ বংশজাত, খারাপ জাত—adj.) He is a base born person; I cannot go along well with him.
Square meal (পেট ভরা আহার): He is too poor to have a square meal everyday.
Set something right (ঠিক করা)— He will set the machine right.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.