Thankless : অকৃতজ্ঞ; প্রশংসাহীন;
Related Words
tangles  thankless  thanklessness  tingles  tinkles  See Words Also In
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Appropriate Prepositions
Abound with(ছেয়ে থাকা): They live in a region that abounds with oil.
Consistent with(সামঞ্জস্যপূর্ণ): Your action is not consistent with your word.
Remedy for (প্রতিকার): There is no remedy for his misbehavior.
Sick of (ক্লান্ত): He is sick of this idle life.
Take after (সদৃশ হওয়া, একই রকম হওয়া): The boy takes after his brother.
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Idioms
Foul play (অসদাচারণ করা): We feared that he had met with foul play.
Ins and out (খুঁটিনাটি): I know ins and outs of this file.
Lump sum (এক কালীন) — He gave us lump sum money.
Maiden speech (প্রথম বক্তৃতা): His maiden speech fell flat on the audience.
Silver tongue (মিষ্টভাষী)- He is a man of silver tongue.