Invalidity : দুর্বলতা; অকার্যকরতা;
Related Words
immovability  in validity  inability  invalid  invalidate  invalidated  invalidating  invalidism  invalidity  See Words Also In
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Appropriate Prepositions
Admit of(স্থান করা, সুযোগপ্রাপ্ত হওয়া): His offence admits of no explanation.
Convict of(দোষী সাব্যস্ত হওয়া): The accused person was convicted of the murder.
Hatred for (ঘৃণা): I have no hatred for anyone.
Indispensable to (অত্যাবশ্যকীয়): Your help is indispensable to him.
Repent of (অনুতাপ করা): I repented of my past.
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Idioms
At-fault (guilty-কিংকর্তব্যবিমূঢ়, অপরাধ, দোষ adj.) You are at fault.
Give one’s right arm (বিপদের ঝুকি নেয়া): I will give my right arm if I could manage the tickets.
In vogue (চালু): This custom is not in vogue at present.
Lose heart (হতাশ হওয়া) — Do not lose heart in danger.
Set free (মুক্ত করা): The prisoners were set free.