How To Deal With People Who Think They Know Everything

By: Joy Youell

Updated March 08, 2021

Medically Reviewed By: Lauren Guilbeault

The world is full of all kinds of people. Some people can challenge your peace of mind. If you have a coworker, a family member, or a friend who acts like they know everything, you may struggle to communicate or connect with that person. Read more to understand why they act this way, and how you can still have a relationship with them.

We've all been around someone who is convinced or, more than likely, just trying to convince themselves that they have the answer to every question thrown their way. We often call these people "know-it-alls." People who think they know everything can ruin a good day if you let them. It can be exhausting to be around someone who refuses to acknowledge that they're human just like everyone else. They might try to make you feel bad about yourself if you don't know something or might even jump in to answer a question without giving you a chance.

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These people tend to be judgmental, harsh, and overbearing. They often take over conversations and congratulate themselves when they appear to be wiser than you. What's tricky is that sometimes you can't avoid these people altogether. If you work with people who have these traits, you might be forced to interact with them, no matter how frustrating their behavior. The good news is that there are ways to deal with said people without compromising your own values and wellbeing.

How to Deal With a Know-It-All

The American Management Association discusses scenarios in the workplace where either bosses or employees embody this unfortunate trait. Their recommendation is to always have understanding as a goal, so you can default to positive thinking and communication.

Being around someone like this can trigger complicated feelings. People who pose as superior can make us feel annoyed, angry, inferior, or insecure. No one benefits from these challenging interactions, but there are multiple ways to prevent them from derailing your peace of mind. Here are some tips.

Maintain Peace of Mind

When you are tempted to feel angry or upset after interacting with someone like this, take care to not let those feelings dominate your mind or heart. Anger is often a catalyst for change, but this is not usually the case if you're dealing with a know-it-all. No one would blame you for feeling angry when you're around someone who constantly needs to show off. There is nothing wrong with experiencing anger; it's a natural emotion. However, we want to be mindful of how we use anger.

Letting feelings of irritation or anger pass helps you focus on the reality of the situation. When you calmly pay attention, you may be able to more clearly see the pushiness and verbal tricks they use in their effort to make you feel small. Noticing these subtle behaviors may give you more power to deal with them appropriately.


This might sound easier said than done, but it takes time and practice to be able to control your reactions. It helps to physically leave the space, take a deep breath, and reset. You only have a limited amount of time and energy in a day, so you want to make sure that you're using it on things that are important to you, and in areas of your life that you can control, not on someone who is trying to hurt you because of their own struggles.

Realize It's Not About You

It helps to understand that know-it-all behavior likely isn't personal. People who behave this way are doing so to cope with their own feelings or internal issues. This has probably been a long-standing pattern in their life that preceded your interactions with them. Secure people do not feel the need to belittle others in order to make themselves look better.

While it may seem like these people are out to get you, it's more likely they're so unhappy with themselves, and have such poor coping skills, that they have to tear you down so they can feel okay. This, of course, does not excuse their behavior, so don't be afraid to set boundaries.

Setting boundaries can be difficult, especially if you're not used to implementing them, or if the other person has a strong personality. Keep in mind that setting boundaries isn't just for the other person; it's for you as well. You're letting that person know how you will and will not be treated. Since we know that we can't control others, we know they might not change their behavior when you set boundaries, but it's important for you to make your voice heard.

Avoid Debate and Arguments

People who think they know everything about you, your situation, and the world in general are typically skilled in debate. They have an answer for everything. People like this have learned how to construct arguments that suit their purposes. They're forceful in presenting their own arguments, but they're not open to your ideas.

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Most times, it's better to avoid getting into an argument with them. It's natural for us to want to defend ourselves when we hear them say something that's false, but it's better to maintain perspective and not fall into the trap of endless debate. You can never really "win" with a know-it-all.

Always try and respond with kindness. Be the bigger person. If this person's superiority translates into a personal attack, do your best to remain unaffected. Set meaningful boundaries, and enforce them, but let comments or criticisms go in one ear and out the other.

Remind Yourself of Your Own Strengths

People who think too highly of their own opinion can try to make you feel worthless. Don't let them do that to you. Instead, remember your positive qualities. Remember that the person who's making you feel that way isn't the ultimate authority on everything. In fact, you are the only true authority on what's right for you. They are only one person, and if you take an honest inventory of your life, you'll likely find that you have a lot of support and don't need to worry about the person who is looking to hurt you. Remember your own strength, intelligence, and sound judgment. Recognizing what makes you valuable to yourself and others may help you avoid feelings of inferiority and inadequacy in these situations.


Seeking Guidance From BetterHelp

Research shows that online therapy can be beneficial for dealing with a variety of issues, including dealing with interpersonal conflict in one’s daily life. A study published in Psychological Medicine found that internet-based counseling can decrease anxiety symptoms. Participants were generally guided through therapy with the help of a counselor, including limited counseling sessions and independently completed exercises and lessons. This type of therapy, according to the study, provides the flexibility of allowing patients to complete therapy at their own pace, and on their own time. It also provides an avenue for people who might not otherwise feel comfortable seeking therapy.

As discussed above, online therapy can provide a number of benefits compared to traditional face-to-face counseling. BetterHelp has counselors who can guide you on your journey to better mental health, whether you often feel small or unimportant, or you simply need a counselor to cheerlead you into better self-talk. And because online counselors can work from almost anywhere, your options for receiving help are far greater than with face-to-face therapy. Use an online platform to connect with a therapist who can give you a convenient and consistent source of encouragement. Read below for reviews of BetterHelp counselors, from those dealing with similar issues with difficult people.

Counselor Reviews

"She does such an amazing job with introducing new ideas and solutions to cope with particular attributes. She has helped me tremendously and it is because of her that I have the tools to help me control my mental thoughts. Thank you so much!"

"Jodi Nelan has encouraged me to explore my relationships with people and allowed me to overcome obstacles in my decision making."


Regular interactions with know-it-alls can be discouraging. You may even begin to struggle with feelings of competency or your own self-worth. While people like this may be a part of your daily life, you can change your responses and reactions to better cope with their behavior. Gaining important tools to protect your wellbeing is important. Take the first step today.

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