Instability : ধৈর্যহীনতা; অস্থিরতা
Related Words
inexhaustibility  instability  See Words Also In
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Appropriate Prepositions
Abound with(ছেয়ে থাকা): They live in a region that abounds with oil.
Burst out a laughter(হাসিতে ফেটে পড়া) He bursts out a laughter.
Busy with(ব্যস্ত থাকা): Rahim is now busy with her homework.
Debar from (বঞ্চিত হওয়া/বাধা দেওয়া): He is debarred from getting a job.
Substitute for (বদলে দেওয়া): This action is substitute for that.
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Idioms
In lieu of (পরিবর্তে): Give me this pen in lieu of that.
On the contrary (বিপরীত পক্ষে): I do not hate him; on the contrary I love him.
To the point (সঠিক) - The boy answered the question to the point.
Up and doing (উদ্যোগী): Be up and doing and then you will succeed in your life.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.