Walk away. What word(s) are worth it?
insult

Ignoring them or walking away is the best reaction. Counter attacking physically or verbally only make you become like your abuser. If you can't beat them, don't join them.

Tolerate insults against yourself but never against your parents. SLAM them with anything you can get hold of.
Let me ask a few questions first;
1.What did you do to receive this insult?
2.Was this from a family member or stranger?
3.Was the insult from a man or woman?
4.This next question depends on how you feel about your mother. Did this insult include your mother in any way or form?
A quote from a person we all know:
“I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them.”
― John Wayne

Step 1. Aggression is commonplace in life. It is easy to overlook its start. Being mindful that an attack is taking place often prevents escalations. "I am sorry you feel that way."
Step 2. Personal appreciation of your self-worth will allow compassion for the attacker. An understanding that insults are conditioned responses to past pain and unmet needs reveals an unexpected opportunity to help someone, but it is an art. An inner kindly smile is a powerful resource for both your unflappable defense as well as a possible redirection of the insult into a productive result.
Step 3. Restate attacker's insult and verify you got it right.
Step 4. Weigh if anything said is somewhat true. Consider the source, too. Does this person's opinion ordinarily deserve respectful consideration? Ask for clarification/examples.
Step 5. Express appreciation for constructive portion of attack. Express lack of appreciation for any destructive portion.
Step 6. There is never a need to apologize. Thank them.
Step 7. Whether or not you briefly examine your day before sleeping (an excellent practice), recall and evaluate the course of the aggressive interaction, consider improvements, and congratulate yourself.
If somebody insult right on on your face not in chess.com but in general, what we should do. Do we have to say sorry to that angry person or do we need to slam that person? or we just have to learn the art of ignorance towards them?