Unworried : নিশ্চিন্ত; অশঙ্কিত; অচঁচল; নিরূদ্বেগ; অব্যাকুল;
Related Words
un married  unhonoured  unhurried  unhurriedly  unhurriedness  unmarried  unmarried girl  unmerited  unmoored  unread  unready  unrewarded  unwearied  unworried  unworthiest  unwritten  See Words Also In
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Appropriate Prepositions
Behave towards(ব্যবহার করা): The students behaved objectionably towards the Head teacher.
Drop to (নিচে নামানো): Asif dropped his voice to a whisper.
Genius for (দক্ষতা): Nazrul had a genius for convincing girls.
Look after (দেখাশুনা): He looks after me.
Look for (খোঁজা): I was looking for the lost phone.
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Idioms
At the eleventh hour (at the last moment-শেষ মুহুর্তে adv.) The patient was in a dangerous condition and the doctor came at the eleventh hour.
Call to mind (স্মরণ করা): I cannot call to mind your cell number.
Fair and square (সৎ): The learned persons should be fair and square.
Pack of lies (ডাঁহা মিথ্যা)—He told pack of lies to prove himself innocent.
Yellow dog (হীন ব্যক্তি) - A yellow dog is always hated by all.