Which two signs should be interchanged to make the given

Choose the most appropriate antonym of the given word

SPORADIC

Loss of appetite

Select the most appropriate antonym of the given word.

Behavioural 

Alimony paid in a live-in relationship.

Select the most appropriate ANTONYM of the word ‘SINKS’ from the given sentence.

Dolorous

Choose the synonym of Zenith 

Empathy

In each of the following questions, out of the 4 alternatives, choose the one which best expresses the meaning of the given word.

Mordant