Ungrateful : অকৃতজ্ঞ;
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ungrateful  ungratefulness  See Words Also In
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Appropriate Prepositions
Angry with(কারো সাথে ক্রুদ্ধ হওয়া): The teacher was very angry with the students.
Argue over (কোন বিষয়ে তর্ক করা): The kids are arguing over which TV program to watch.
Count upon(নির্ভর করা): He always counts upon your help for this work.
Lost in (মগ্ন): Simon is lost in meditation.
Repentant for (অনুতপ্ত): Kamal should be repentant for his misbehavior.
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Idioms
Bring to light (disclose-প্রকাশ করা) The police brought the secret to light.
Bare word (শুধু মুখের কথা, স্বাক্ষী প্রমানহীন কথা-n) He believed your bare word and now he has been played false with.
Now and then (মাঝে মাঝে): He comes here now and then.
Safe and sound (নিরাপদে)— He reached home safe and sound.
Tooth and nail (তীব্রভাবে): He fought tooth and nail for the sake of country.