Untested : অপরীক্ষিত;
Related Words
unattached  undestroyed  undetected  undigested  undistorted  undisturbed  unmitigated  untasted  untested  untwist  See Words Also In
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Appropriate Prepositions
Attend on/upon (সেবা করা): We should attend on/upon the ailing patient.
Charge with(অভিযুক্ত করা): He is charged with killing.
Deal in (কোনো কিছুর ব্যবসা করা): They deal in green vegetables.
Die from (কোন কিছু জন্য মারা যাওয়া): The poor person died from hunger.
Guess at (অনুমান করা): It is difficult to guess at the age of women.
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Idioms
At a round rate (at the fixed price – নির্ধারিত মূল্যে) Things are selling in the shop at a round rate.
Bad blood - (শত্রুতা): There has always been bad blood between these families.
Speed money (ঘুষ; উৎকোচ): He hankers after speed money.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.
Well-to-do (সঙ্গতিপূর্ণ) - He was not born in a well-to-do family.