Perfidious : বিশ্বাসহীন; বিশ্বাসঘাতক; অবিশ্বাসী; অবিশ্বস্ত;
Related Words
perfidious  perfidiousness  propitious  See Words Also In
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Appropriate Prepositions
Bar to(বাধা): Poverty is not a bar to happiness.
Complain about (কোনো বিষয়ে নালিশ করা): They complained about the mismanagement of the programme.
Fail in (ব্যর্থ হওয়া): He failed in getting internet connection in his room.
Remedy for (প্রতিকার): There is no remedy for his misbehavior.
Side with (পক্ষ অবলম্বন করা): The Chairman sided with the powerful party.
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Idioms
Liable to mislead (প্রতারণাপূর্ণ- deceptive): Appearances can often be liable to mislead.
Man of letters (পন্ডিত ব্যক্তি): You are truly a man of letters.
To play on a fiddle (অনর্থক সময় নষ্ট করা - To waste time)-He played on a fiddle by nature.
Red letter day (স্মরণীয় দিন): The 16th December is a red letter day for us.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.