Unprepared : অপ্রস্তুত;
Related Words
unprepared  unpreparedness  See Words Also In
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Appropriate Prepositions
Answerable to (কারো কাছে জবাবদিহিতা করা): He is not answerable to anybody for his mistake.
Cast aside (ছুঁড়ে ফেলা): As soon as they become rich they cast aside their poor friends.
Contribution to (অবদান): His invention made a major contribution to road safety.
Relation with (সম্পর্ক): I have no relation with the culprit.
Taste of (স্বাদ; অভিজ্ঞতা): They have had some taste of problems.
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Idioms
At all (in the least degree – মোটেও না) There is no water at all in the pond.
At ease (in peace or pleasure – শান্তিতে বা আরামে) A man who has enemies can not live at ease.
Fair and square (সৎ): The learned persons should be fair and square.
In full swing (পুরোদমে): The school is in full swing after the vacation.
Pass away (মারা যাওয়া)— He passed away last night.