Irreproachable : নির্র্দোষ . নিখুঁত
Related Words
irrefragable  irrepressible  irreproachable  irreversible  See Words Also In
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Appropriate Prepositions
Congenial to(উপযোগী): The atmosphere is congenial to your health.
Contrary to(বিপরীত, পরিপন্থী): Students should not act contrary to the rules of discipline.
Dull of (বধির; কানে শুনে না): He is dull of hearing.
Loyal to (অনুগত): Every citizen must be loyal to the state.
Relevant to (প্রাসঙ্গিক): Your answer is not exactly relevant to my question.
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Idioms
As a rule (নিয়ম অনুসারে.) As a rule, she kept silent in the meeting.
Follow the footsteps of (পায়ে পায়ে অনুসরণ করা): People always follow the footsteps of some great man.
Lame excuse (বাজে ওজর): The lame excuse will not do.
Set free (মুক্ত করা): The prisoners were set free.
Turn down (refuse, প্রত্যাখান করা) —He turned down my proposal.