Useless : অনাবশ্যক; অপ্রয়োজনীয়;
Related Words
use less  useless  useless person  uselessly  uselessness  See Words Also In
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Appropriate Prepositions
Afraid of(ভীত): An honest man is not afraid of telling the truth.
Appeal to, for(কোন ব্যক্তির কাছে কোন কিছুর জন্য আবেদন করা): The flood affected people appealed to the President for reef.
Astonished at(বিস্ময়-বিহবল হওয়া): We were astonished at his unexpected success.
Road to (উপায়/ রাস্তা): There is no easy road to learning.
Side with (পক্ষ অবলম্বন করা): The Chairman sided with the powerful party.
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Idioms
At-fault (guilty-কিংকর্তব্যবিমূঢ়, অপরাধ, দোষ adj.) You are at fault.
As a rule (নিয়ম অনুসারে.) As a rule, she kept silent in the meeting.
From cradle to grave (দোলনা থেকে কবর পর্যন্ত): Everyone has to learn from cradle to grave.
On the contrary (বিপরীত পক্ষে): I do not hate him; on the contrary I love him.
Silver living (hope- আশা বা ভালো দিক): Every cloud has a silver lining.