Untiring : অক্লান্ত; ক্লান্ত হয় না এমন;
Related Words
undermining  untiring  untiringly  See Words Also In
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Appropriate Prepositions
Capable of(সক্ষম): He is capable of doing it.
Careful of (সতর্ক): He is very careful of his fault.
Careful of(যত্নশীল থাকা): Sadia is careful of her health.
Fit for (যোগ্য): Sabina is not yet fit for marriage.
Good for, at (ভাল): This man is good for nothing. He is good at English.
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Idioms
At liberty (free-মুক্ত-adj.) They are at liberty to go anywhere.
Easy and free (অমায়িক): The boy is easy and free, so he has many friends.
Out of date (সেকেলে): This fashion is out of date.
Slow coach (অলস): You cannot expect much from a slow coach.
Under age (অপ্রাপ্ত বয়স্ক)- He could not cast his vote because he was under age.