A symmetrical : অপ্রতিসম; অসমজ্ঞ্জস; অসমাঙ্গ;
Related Words
a symmetrical  asymmetrical  See Words Also In
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Appropriate Prepositions
Bad at (অদক্ষ): He is not bad at English.
Burst out a laughter(হাসিতে ফেটে পড়া) He bursts out a laughter.
Dull at (অপ্টু/কাঁচা): He is dull at mathematics.
Relevant to (প্রাসঙ্গিক): Your answer is not exactly relevant to my question.
Substitute for (বদলে দেওয়া): This action is substitute for that.
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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.
Cock and bull story (আষাঢ়ে গল্প): You must be ashamed of your cock and bull story.
Out of order (বিকল): The elevator was out of order.
Salt of the earth (গুরুত্বপূর্ণ ব্যক্তিবর্গ) —The salt of the earth is remembered always.
Through thick and thin (through all difficulties, সমস্ত সমস্যার মধ্যে)-Ruma followed her husband through thick and thin.