Problematic : অনিশ্চিত; সন্দেহযুক্ত;
Related Words
problematic  problematical  See Words Also In
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Appropriate Prepositions
Authority over (কর্তৃত্ব, আধিপত্য): She has no authority over his growing daughters.
Burst into(কান্নায় ভেঙ্গে পড়া): He burst into tears.
Compete with(প্রতিযোগিতা করা): He does not pke to compete with
Composed of(তৈরী): This medicine is composed of vitamins and minerals.
Suffer from (অসুখে ভোগা, কষ্ট পাওয়া): He has been suffering from fever for last three days.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Back and forth (এদিক ওদিক) The mad man was running back and forth in the hospital.
Make hay while sun shines (ঝোপ বুঝে কোপ মারা) You should try to make hay while sun shines.
Slip of the pen (লেখায় অসতর্কতাবশত সামান্য ভুল): The mistake is due to a slip of the pen.
Yellow dog (হীন ব্যক্তি) - A yellow dog is always hated by all.