In the following question, out of the four alternatives, select the one which best expresses  the meaning of the given word. Mourn

In the following question, out of the four alternatives, select the one which best expresses  the meaning of the given word. Mourn Correct Answer Bewail

'Mourn' means to 'express sorrow especially for the death of someone'. It could be related to 'bewailing' which means 'to cry'. 

'Laugh' and 'chirpy' are both associated with the idea of 'happiness' and hence can be discarded from consideration.

'Callous' on the other hand, means 'to be insensitive or cruel'. 

Therefore, only 'bewail', i.e, option 3, is the correct synonym.