What Is Resentment?
We’ve all been there — replaying a conversation in our heads at 2am, rehearsing what we should have said, feeling that hot, bitter coil of anger tighten in our chest when a certain name comes up. That feeling has a name: resentment.
Resentment is more than just anger. It is a layered, complex emotional state that builds when we feel we have been treated unfairly, overlooked, betrayed or wronged — and when that wound goes unhealed.
“Resentment is a complex emotion,” says Tamara Cavenett, a clinical psychologist and former president of the Australian Psychological Society. “It’s often defined as anger or indignation that you experience as a result of some sort of perceived unfair treatment by someone else. But underneath it there’s often feelings of hurt or disappointment, or even fear.”
Philosopher Friedrich Nietzsche was one of the first thinkers to write extensively about the concept, calling it ressentiment — a festering, inward-turning bitterness that builds when we feel powerless to act on our hurt. Today, psychologists broadly agree: resentment is anger that hasn’t found an outlet. It is anger that has gone underground.
It can stem from any number of situations: a colleague who takes credit for your work, a partner who consistently dismisses your needs, a family member who let you down in a moment that mattered, or a friend who has drifted away without explanation. Some resentments are born from one sharp betrayal; others accumulate slowly, like sediment, from dozens of small slights.
Whatever the source, resentment shares a defining quality: it keeps us anchored in the past while life moves forward without us.
How to Recognise Resentment
One of the trickier aspects of resentment is that we don’t always identify it as such. It disguises itself as other feelings — irritability, sadness, withdrawal — and often, we’re the ones quietly suffering while the other person is blissfully unaware.
Here are some signs that resentment may be operating in your life:
Recurring negative thoughts. You find yourself frequently returning to the same memory or perceived injustice. The thought loop feels almost compulsive — your mind replays the event, and the feelings it stirs are just as raw as they were the first time.
Trouble sleeping. You lie awake rehearsing arguments, imagining confrontations, or mentally composing messages you’ll never send. The brain, caught in a loop of unresolved emotion, struggles to power down.
Passive aggression or snappiness. You may not consciously act out your resentment, but it leaks out — in a sharp tone, a pointed comment, a door closed a little too firmly. You might even regret it immediately, but find yourself repeating the pattern.
Avoidance. You restructure your life to sidestep certain people or situations, not out of calm boundary-setting, but out of an emotional charge that feels too uncomfortable to face. Avoidance, however, tends to feed resentment rather than starve it.
Physical tension. Resentment lives in the body. Many people describe it as tightness in the chest, a clenched jaw, a knot in the stomach. The body keeps score long after the mind has tried to move on.
Disproportionate reactions. A seemingly small thing — a certain tone of voice, a particular phrase — triggers a surge of emotion that feels far bigger than the moment warrants. That’s often resentment from an earlier wound being activated in the present.
Pleasure in another’s misfortune. If you find yourself quietly satisfied when someone who has wronged you stumbles, that schadenfreude is worth examining — it’s frequently a signal of unresolved resentment.
If any of this sounds familiar, you’re in good company. Resentment is one of the most universal human experiences, and recognising it is the crucial first step toward releasing it.
What Resentment Does to Your Health
The research is clear: holding onto resentment doesn’t just affect your mood — it can affect your physical health too.
A 2023 study cited by Harvard Health found that forgiveness — the antidote to resentment — reduces anxiety and depression, improves sleep quality, and helps lower blood pressure and heart rate. Conversely, harbouring bitterness keeps the body in a chronic state of low-grade stress, with all its associated consequences.
Studies also show that internalised anger and resentment can negatively affect cognitive function, including learning and memory. A meta-analysis of 83 studies involving nearly 40,000 participants, published in Personality and Individual Differences, found that when people hold onto resentment, they experience fewer positive emotions and consistently report lower life satisfaction.
In New Zealand, the most recent national health survey data shows that 13 per cent of New Zealanders report high or very high levels of psychological distress — a figure that has risen steadily over the past decade. In Australia, the proportion of people finding it difficult to cope on their current income rose from 17 per cent in 2020 to nearly 35 per cent by 2024, according to the Australian Mental Health Commission — financial and relational stress that creates fertile ground for resentment to take root.
Put simply: the cost of holding on is high. And the benefits of letting go are well supported by science.
The Best Ways to Release Resentment
Releasing resentment does not mean excusing someone’s behaviour, minimising your hurt, or pretending the wound never happened. It means choosing to free yourself from the weight of carrying it. Here’s how to begin.
1. Name It Honestly
The work begins with acknowledgement. Rather than pushing the feeling aside or rationalising it away, sit with it long enough to name it clearly: I feel resentful toward this person because I felt unseen, betrayed, taken advantage of.
Journaling is one of the most effective tools for this. Writing about resentment — what happened, how it affected you, and what unmet need it points to — can be cathartic. It externalises the emotion, giving you a little distance from it, and often illuminates patterns and perspectives that rumination alone cannot.
2. Separate the Person from the Pain
Resentment often conflates the person who hurt us with the hurt itself. Cognitive behavioural therapy (CBT), widely used by Australian and New Zealand psychologists, helps people identify and challenge the distorted thinking patterns that can sustain resentment — such as all-or-nothing thinking, catastrophising, or the belief that the other person must suffer for us to feel okay.
The evidence is strong: meta-analyses show that CBT-based forgiveness interventions reduce depression, anxiety and stress while increasing wellbeing. A simple CBT-informed exercise is to pause when a resentment loop begins and ask yourself: What am I telling myself about this situation? Is that thought entirely true? Is it helping me?
3. Try Mindfulness — and Mean It
Mindfulness is more than a wellness buzzword. For resentment specifically, it offers a way to observe painful thoughts without becoming consumed by them.
“There is some good research around empathy and self-compassion, and particularly using meditation and mindfulness,” says Cavenett. “Any relaxation technique that you find useful for self-care or self-calming — or even just something that distracts you — can help ease those negative feelings.”
Australian psychology practice Mindview Psychology recommends a simple approach: when you notice a resentment loop beginning, pause, take a breath, and gently return your attention to the present moment. The goal is not to suppress the feeling, but to reduce its grip — to become the observer of the thought rather than its captive.
For beginners, guided meditation apps like Smiling Mind (developed in Australia) or Headspace offer a structured entry point. Even ten minutes a day of mindfulness practice can, over time, change the brain’s relationship to rumination.
4. Practice Loving-Kindness Meditation
Loving-kindness meditation — also known as metta — involves directing warm wishes first toward yourself, then toward neutral people, and eventually toward people who have caused you pain. It sounds counterintuitive, and for many people, it initially feels uncomfortable.
But the research supports it. Loving-kindness practices build compassion and empathy, soften the emotional charge around resentment, and help shift the internal narrative from that person wronged me toward something that allows for peace. It does not require you to condone what was done — only to genuinely wish for the reduction of suffering, including your own.
5. Understand That Forgiveness Is for You
Perhaps the most important reframe in releasing resentment is this: forgiveness is not a gift you give the other person. It is something you do for yourself.
Forgiveness is defined by researchers as consciously choosing to release resentment or feelings of animosity toward a person or group that has harmed you — regardless of whether they deserve it. A 2024 study found strong associations between forgiveness and psychological wellbeing, and a negative link between not forgiving and depression.
“By embracing forgiveness, you may feel more peace and hope,” notes the Mayo Clinic’s guidance on forgiveness. Those who are more inclined to forgive tend to experience less stress, anxiety and depression — not because forgiving is easy, but because continuing to carry resentment costs more.
Forgiveness is also a process, not a single decision. It rarely happens in one moment. It happens gradually, through the accumulated choices to interrupt the resentment loop, to choose presence over replay, to prioritise your own peace.
6. Address Your Unmet Needs
Resentment often points to something important: a need that was not met, a boundary that was not respected, a feeling that was not acknowledged. Rather than focusing solely on the other person’s wrongdoing, it’s worth asking: What did I need in that situation that I didn’t get? And how can I get that need met now — from myself, from others, or by communicating it more clearly?
This shift moves resentment from a backward-looking emotion to a forward-looking one. It transforms the wound into information.
7. Talk to Someone
For deep or long-held resentments — particularly those rooted in childhood, significant betrayal, grief, or trauma — working through it alone has limits. A psychologist or therapist, particularly one trained in CBT, acceptance and commitment therapy (ACT), or emotion-focused therapy, can provide structured, compassionate support.
In Australia, you can access up to 10 Medicare-rebated sessions with a psychologist each calendar year through a Mental Health Treatment Plan, which your GP can arrange. In New Zealand, your GP can refer you to a counsellor or psychologist through primary mental health initiatives. Telehealth has also made accessing mental health support easier than ever for those in regional or rural areas.
Mindview Psychology, based in Australia, notes that resentment underpins many of the issues that arise in relationships and is one of the most common reasons couples seek help. Seeking support, they note, takes courage — it is not a sign of failure.
A Final Word: Progress, Not Perfection
Letting go of resentment is rarely linear. You may think you’ve released a feeling, only to have it surface again when you least expect it — a song, a smell, a chance encounter. That doesn’t mean you’ve failed. It means you’re human.
What matters is that you keep interrupting the loop. Keep choosing — imperfectly, repeatedly — to return to the present. Keep tending to your own wellbeing rather than staying locked in the story of someone else’s wrongs.
The old saying holds: resentment hurts the one who holds it most. And the freedom that comes from releasing it — even gradually, even incompletely — is real, and it is yours to claim.
