The opposite meaning of ‘Hearten’ is -

The news of President Zim's death astonished the world. Choose a word which would best keep the meaning of the given sentence if it was substituted for the word 'astonished'. 

The antonym of 'Scarcity' is:

‘Utilize’ শব্দটির Synonym হচ্ছে-

The custom is ‘popular’ now. Here synonym of ‘popular’ is-