Unassailably : প্রশ্নাতীত; সন্দেহাতীত;
Related Words
unassailable  unassailably  unsalable  unsaleable  unscalable  unsolvable  See Words Also In
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Appropriate Prepositions
Aptitude for(স্বাভাবিক দক্ষতা, যোগ্যতা): He has no aptitude for public service.
Desist from (বিরত থাকা): She desisted from making this.
Dwell in (বাস করা): He dwells in a tall apartment.
Faithful to (বিশ্বস্ত): The dog is very faithful to its master.
Succeed in (সাফল্য লাভ করা): He succeeded in life.
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Idioms
At every step (প্রতি পদে পদে): There are dangers at every step in our life and yet we want to live.
Fair and square (সৎ): The learned persons should be fair and square.
In lieu of (পরিবর্তে): Give me this pen in lieu of that.
Out of temper (ক্রুদ্ধ): The teacher is out temper to see the overall results.
To the brim (কানায় কানায়) - The river was full to the brim.