November 2026
Short answer: The words that escalate conflict most often are “always”, “never”, “but”, “calm down”, “why did you”, “to be honest”, “you should” and “that’s not what happened”. They make people feel accused or dismissed. Trained mediators replace them with specific descriptions, “and” instead of “but”, acknowledgement of emotions and open questions such as “What was important to you?”.
“Calm down.”
Has anyone in the history of human conflict ever calmed down after hearing those two words? Probably not. Yet we keep saying them, in meetings, in families, in negotiations worth millions.
Most conflicts do not escalate because of what people want. They escalate because of how they talk about it. A single word can make someone feel accused, dismissed or cornered, and once that happens, the actual issue disappears behind the need to defend oneself.
Mediators know this. Much of what they learn in training is not legal knowledge or clever techniques. It is language: noticing the words that light the fuse, and choosing different ones.
Here are seven of the most common culprits.
1. “Always” and “never”
“You always interrupt me.” “You never reply on time.”
The moment you generalise, the other person stops listening to your concern and starts looking for the exception. And they will find one. The conversation becomes a debate about accuracy, not about the problem.
Marshall Rosenberg, the founder of Nonviolent Communication, describes exaggerations like “always” and “never” as mixing observation with evaluation. Relationship researcher John Gottman makes a similar distinction: a complaint addresses a specific issue, while criticism attacks the person.
What mediators say instead: they describe a specific moment. “In yesterday’s meeting, I didn’t get to finish my point.” Specific is hard to argue with.
2. “But”
“I hear what you’re saying, but…” In practice, many listeners hear only what comes after “but”.
What mediators say instead: “and”. “You need the report by Friday, and the team needs another two days for quality checks.” Both things are true. “And” lets them sit side by side.
3. “Calm down”
Telling someone how to feel suggests that their reaction is the problem. It rarely lowers the temperature. It usually raises it.
What mediators say instead: they acknowledge the emotion. “This is clearly frustrating for you.” People calm down when they feel understood, not when they are instructed to.
Neuroscience backs this up. In a UCLA study, putting feelings into words reduced activity in the amygdala, the brain’s alarm centre (Lieberman et al., 2007).
4. “Why did you…?”
On paper, “why” is an innocent question. In a tense conversation, it sounds like an interrogation. “Why did you send that email?” invites justification, and justification invites counter-attack.
What mediators say instead: “What was important to you when you sent that email?” The question is the same. The effect is completely different.
This reflects a core principle from the Harvard Program on Negotiation: look behind people’s positions to the interests that drive them.
5. “To be honest…”
It is meant to signal sincerity. In a tense conversation, it is often heard as the opposite: that what follows will hurt, or that everything said before was not quite honest.
What mediators say instead: nothing. They simply say what they mean, clearly and respectfully.
6. “You should…”
Advice that nobody asked for feels like judgement. In conflict, “you should” tells the other person they have failed.
Research on psychological reactance supports this: in studies by Fitzsimons and Lehmann (2004), unsolicited recommendations that clashed with people’s own view often led them to choose the opposite.
What mediators say instead: they ask. “What options do you see?” Solutions that parties develop themselves are the ones they actually keep.
7. “That’s not what happened”
Two people rarely remember a conflict the same way. Insisting on one version of the truth turns the conversation into a trial, with no judge in the room.
Social psychologists Lee Ross and Andrew Ward call this naive realism: we assume we see things as they really are, so anyone who disagrees must be uninformed or biased. Ross and Ward identified it as a key barrier to resolving disputes.
What mediators say instead: “So for you, it felt like…” Mediators do not need to establish what happened. They need to understand what each person experienced, because that is what drives the conflict.
Why this matters beyond mediation
You do not need to be a mediator to use any of this. Managers, HR professionals, lawyers, teachers and parents all face moments where a few words decide whether a conversation moves forward or falls apart.
But there is a difference between reading a list and doing it under pressure. When emotions run high, most of us fall back on old habits. That is why mediation training is built around practice: role plays, feedback and real-time coaching until the new language becomes instinct.
Frequently asked questions
What should you say instead of “calm down”?
Acknowledge the emotion instead of correcting it, for example: “This is clearly frustrating for you.” People de-escalate when they feel understood, not when they are told how to feel.
Why does the word “but” make conflicts worse?
“But” is often heard as cancelling whatever was said before it, so the other person focuses on the objection. Replacing it with “and” lets both points stand side by side, which keeps the conversation open.
What is the most effective de-escalation question?
Mediators often replace “Why did you…?” with “What was important to you when…?”. It invites people to explain their interests rather than defend their behaviour.
Where can I learn mediation communication skills online?
The International Mediation Campus (IMC) offers the Professional Mediation Course live online in English, with a 10-week part-time format, a 1-week intensive format and regional time zones. The course is an IMI Certified programme, a SIMI Registered Training Programme and includes an ISM University certificate. IMC is operated by CONSENSUS GmbH in Stuttgart, Germany, and has trained professionals from more than 80 countries.
Learn the language of resolution
In the Professional Mediation Course, you practise these skills live, with professionals from more than 80 countries, guided by experienced trainers. You leave with an internationally recognised certificate and a pathway towards IMI accreditation.
If you would like to find out which course format fits your schedule, book a free consultation with one of our advisors. Book a free consultation or explore the Professional Mediation Course.
Sources
- Rosenberg, M. B.: Nonviolent Communication: A Language of Life, Chapter 3 “Observing Without Evaluating”. PuddleDancer Press. nonviolentcommunication.com
- The Gottman Institute: The Four Horsemen: Criticism, Contempt, Defensiveness, and Stonewalling. gottman.com
- Lieberman, M. D. et al. (2007): Putting feelings into words: affect labeling disrupts amygdala activity in response to affective stimuli. Psychological Science, 18(5), 421–428. PubMed
- Program on Negotiation at Harvard Law School: Principled Negotiation: Focus on Interests to Create Value. pon.harvard.edu
- Fitzsimons, G. J. & Lehmann, D. R. (2004): Reactance to recommendations: When unsolicited advice yields contrary responses. Marketing Science, 23(1), 82–94. RePEc
- Ross, L. & Ward, A. (1995): Psychological barriers to dispute resolution. Advances in Experimental Social Psychology, 27, 255–304; Ross, L. & Ward, A. (1996): Naive realism in everyday life: Implications for social conflict and misunderstanding. In: Values and Knowledge, 103–135. Erlbaum. Overview