17 Oct
2026
You are grown now, with your own job, your own home and maybe children of your own. Yet one comment from a brother or sister at a family dinner can make you feel twelve years old again. Old competition, old labels and old hurts have a way of showing up long after childhood ends.
Sibling rivalry in adulthood is common, and it does not mean your family is broken. It means something from the past still needs attention. The good news is that adults have tools children do not: perspective, choice and the ability to start a different conversation.
Many sibling tensions start with roles handed out early. One child was "the responsible one," another "the funny one," another "the troublemaker." Those labels can stick for decades, even when they no longer fit anyone.
Other tensions grow from comparison. Parents may have praised one child's grades and another's athletic skill, or treated their children differently without meaning to. In adulthood, the comparisons simply move to careers, marriages, money and parenting styles.
Big family moments can stir it all up again: weddings, holidays, a parent's illness, decisions about care or an inheritance. When stress rises, people often fall back into the patterns they learned as kids.
Before you try to fix the relationship, take an honest look at what you bring to it. A few questions can help:
You may discover that some of the rivalry lives mostly in your own head. You may also discover that a real hurt has never been named out loud. Both are worth knowing before you reach out.
Making peace usually begins with one person choosing to go first. It does not have to be a dramatic sit-down. A short call or message can open the door: "I've been thinking about us. I'd like us to be closer. Can we talk sometime?"
When you do talk, describe your own feelings instead of judging their character. "I felt left out when plans were made without me" lands very differently from "You always shut me out." Listen to their side without interrupting, even when you remember things differently. Two children raised in the same house can have very different childhoods.
If you owe an apology, give it plainly, with no "but" attached. If they apologize, accept it gracefully, even if it is not perfect. You are not trying to win an argument about the past. You are trying to build something better for the future.
Adult siblings often keep invisible accounts: who calls more, who visits Mom more, who got more help with school or a first car. Some of those imbalances are real and worth discussing calmly, especially when they involve shared responsibilities like caring for a parent.
Much of the scorekeeping, though, only keeps the rivalry alive. Try celebrating a sibling's good news without measuring it against your own life. Their success does not shrink yours. A family is not a contest with one prize.
When practical matters do need sorting out, write down who will do what and check in regularly. Clear plans prevent a lot of quiet resentment.
Jonathan Anthony Burkett grew up in South Florida with two younger brothers, and his memoir Neglected But Undefeated (2012) shows how much siblings can mean to each other when life is hard. As a boy he helped feed them, change their diapers and put them to sleep, and he wrote that they were "the only highlights of each day." Years later, when he had no stable place to live, his brothers snuck him into the house so he could shower and eat, and gave him a bed whenever they could.
In the book's acknowledgments, he thanks God for his two brothers and writes:
"No matter what, we will always love one another, and be there for one another."
— Jonathan Anthony Burkett, Neglected But Undefeated
Most sibling relationships will never be tested that hard. But his words point to what matters most: showing up for each other, whatever came before.
Not every sibling will meet you halfway right away. Some need time to believe you mean it. Keep the door open with small, steady gestures: a birthday message, an invitation, a kind word about their kids. Consistency often says more than a big speech.
If a relationship involves ongoing cruelty or manipulation, peace may mean firm boundaries and some distance rather than closeness. A licensed family therapist can help you sort out what is healthy for you, and sessions with siblings together can help when old patterns are too tangled to undo alone.
Pick one sibling today and reach out with something simple and warm. To read more about the brothers who helped carry Jonathan through, visit the books page.
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