Unflappable : উদ্বেগহীন; অচঞ্চল; সংকটে অবিচলিত; অনুদ্বিগ্ন;
Related Words
unappealable  unavailable  unbelievable  unflappable  See Words Also In
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Appropriate Prepositions
Fit for (যোগ্য): Sabina is not yet fit for marriage.
Look into (তদন্ত করা/অনুসন্ধান করা): I am looking into the matter.
Relevant to (প্রাসঙ্গিক): Your answer is not exactly relevant to my question.
Short of (অপর্যাপ্ত): I am running short of money.
Thirst for (তৃষ্ণা, আকাঙ্ক্ষা): A wise man has no thirst for wealth.
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Idioms
Art and part (অভিসন্ধি ও সম্পাদন) We have no art and part in his affairs.
Back and forth (এদিক ওদিক) The mad man was running back and forth in the hospital.
Cock and bull story (আষাঢ়ে গল্প): You must be ashamed of your cock and bull story.
Foul play (অসদাচারণ করা): We feared that he had met with foul play.
Worthy of (যোগ্য) - He is worthy of a good job.