How do you make something clear that you don't like someone?

First of all, I would suggest anyone does not behave rudely to others. He should maintain good and sincere relationships with people, think well of them and as a result, they will do good.

If such a situation arises that he clearly wants to show that he does not like someone or wants to express it too, but for some reason, he does not dare to do so, then withdrawal, silence & ignorance is the best treatment. Ignoring a disgusting person is a great punishment. No human being can tolerate being ignored for a long. He will soon break up his relationship with him. In this way, without any accusation, taunts, and insults, the person will get rid of him, and this will kill the snake without breaking a rod. What do you think of this answer?