Gaslighting: meaning, origin, examples and how to cope

CareOps editorial team · · 8 min read

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“I never said that. You're being oversensitive again.” When you're sure you heard something and keep getting answers like this, you can start doubting your own memory. People often call this experience gaslighting. This article isn't about judging what kind of person someone is. It's about calmly looking at what keeps happening and regaining trust in your own judgment.

At a glance

  • Gaslighting means repeatedly denying or undermining someone's memory, feelings and judgment until they stop trusting themselves.
  • The term comes from Patrick Hamilton's 1938 play “Gas Light” and the 1944 film “Gaslight”, in which a husband denies what his wife notices until she doubts her own mind.
  • What matters is a repeated pattern, not a single argument. Writing down what happened, checking with people you trust and setting boundaries are first steps to protect yourself.

What does gaslighting mean?

Put simply, gaslighting is repeatedly manipulating someone's sense of what happened so that they can no longer trust their own thinking and judgment. The key elements are repetition and self-doubt. Events get denied, feelings get dismissed as overreactions, and over time the person comes to trust the other's account more than their own memory.

Sociologist Paige Sweet (2019) described gaslighting as a type of psychological abuse that makes a person seem or feel “crazy,” and argued that it plays out in close relationships with unequal power. That's why this article looks at what keeps happening in a relationship rather than at anyone's personality.

The origin of gaslighting: the 1938 play and the 1944 film

The word comes from “Gas Light”, a 1938 play by British writer Patrick Hamilton. Set in 1880s London, it tells the story of a husband who deceives his wife so that she believes she is losing her mind. It was adapted for film in Britain in 1940 and in the United States in 1944. The 1944 version, directed by George Cukor and starring Ingrid Bergman and Charles Boyer, became especially well known.

In the film, the heroine notices the gaslights in the house dimming for no apparent reason. Her husband insists nothing is happening, and she gradually stops trusting her own eyes. Later it is confirmed that what she saw was real. The term grew out of this: having what you perceive denied until you start doubting yourself.

Examples of gaslighting: partners, family and work

Hearing one of these lines once doesn't mean you're being gaslit. Everyone misremembers or says things clumsily sometimes. It's worth a closer look when they keep repeating in a similar way and you always end up being the one who was wrong.

RelationshipWhat it often sounds likeWhat repetition does
Partner“I never said that. You made it up.”You start doubting your memory
Partner“You're too sensitive. Everyone else is fine with it.”You stop sharing your feelings
Family“That never happened in our family. You're exaggerating.”Even childhood memories feel shaky
Family“I only said it for your own good. Why take it that way?”Being hurt starts to feel like your fault
Work“I never asked you to do that.” (when you clearly heard it)You stop trusting your work judgment
Work“Everyone says you're the problem.” (with no names)It becomes hard to check with others

How is gaslighting different from an ordinary disagreement?

In close relationships, memories differ and opinions clash all the time. That in itself is normal. The difference lies in whether both people's experiences are respected, or one person's experience gets erased.

Ordinary disagreementA gaslighting-like pattern
When memories differ“I remember it differently. Shall we check?”It ends with “That never happened.”
When you share feelings“So that's how it felt to you.”“You're too sensitive” erases the feeling
After a conflictBoth people reflect a littleOnly one person ever apologizes
Over timeYou understand each other betterYou trust yourself less and less

From the outside it's hard to know what anyone intended, and you don't need this article to judge the other person. What matters is whether, inside that relationship, you are gradually losing trust in yourself. If conversations often stop dead after an argument, see the silent treatment after a conflict.

Signs you may be on the receiving end

These are not diagnostic criteria. They are changes people in such relationships often describe. If several overlap and have lasted a while, it may be time to look at the relationship from a step back.

  • You often doubt your memory: even about things you're sure happened, “Am I remembering it wrong?” comes first.
  • You censor yourself before speaking: you calculate what to say so you won't be told you're wrong again.
  • You apologize without knowing why: “I'm sorry” comes out by habit even when you can't name what went wrong.
  • It's hard to explain to others: when you try to describe what happened, you feel oversensitive and stop.
  • Your confidence has shrunk: even outside that relationship, it's harder to trust your own judgment.

When this lasts a long time, it can overlap with putting others' moods first and struggling to say no. We cover that in good child complex and people-pleasing.

How to step back and protect yourself

Rather than trying to change the other person or win the argument, start with regaining trust in your own memory and judgment.

  1. Write things down as they happen: note the date, what was said and how you felt. Keep messages and emails rather than deleting them. If you later hear “That never happened,” you can go back to your own record.
  2. Check with people you trust: tell a friend or relative outside the relationship exactly what happened and ask how it sounds to them. Things often become clearer than when you mull them over alone.
  3. Look for the pattern: instead of one remark, look in your notes for how often similar things happen and in what order.
  4. Set a boundary and keep it short: prepare a sentence that protects your experience, such as “That's how I remember it. I'm going to stop the conversation here,” and don't keep the same argument going endlessly.
  5. Keep distance as an option: if talking leaves you more shaken each time, seeing or contacting the person less is also a way to protect yourself.

If guilt rushes in after you set a boundary, read feeling guilty after saying no. If opening up to anyone feels hard, see how to ask for help. And if relationships have been wearing you down for a long time, relationship stress may help.

When to seek outside help

If threats, monitoring or violence are involved, if your money or contacts are being controlled, or if harassment at work continues, this is not something to solve with better communication. Put your safety first and tell people who can actually help, such as someone you trust, your workplace's reporting channel or a relevant support organization. The notes you've kept can be useful when you ask for help.

When to talk to a professional

If self-doubt is spreading into the rest of your life, if anxiety or a low mood has lasted for weeks, or if you have thoughts of wanting to disappear, don't try to sort it out alone. Talk with a mental health professional.

If you want help sorting out what happened

Inside a confusing relationship, it's often hard to sort out on your own what actually happened. CareOps Maeumi is an AI counseling app that runs sessions with approaches such as cognitive behavioral therapy (CBT) and acceptance and commitment therapy (ACT), and remembers past sessions so the next one picks up where you left off. You can walk through what happened step by step and draft words that protect your experience. Get the app

Frequently asked questions

What does gaslighting mean?
It means repeatedly denying or undermining someone's memory, feelings and judgment until they stop trusting themselves. The key features are repetition and the self-doubt it creates.
Where does the word gaslighting come from?
It comes from Patrick Hamilton's 1938 play “Gas Light” and the films based on it. In the 1944 American film, the heroine notices the gaslights dimming, but her husband insists nothing is happening, and she gradually doubts her own eyes.
What are some examples of gaslighting?
Lines like “I never said that,” “You're too sensitive,” “You're exaggerating” and “Everyone says you're the problem” are often mentioned. One remark alone isn't gaslighting; what matters is whether similar lines keep repeating and you always end up being the one who was wrong.
Can gaslighting happen in families?
The term is used not only for romantic partners but also for families and workplaces, where there is often a difference in power. You don't need to pass judgment on your family, though. If your memories are often denied and you come away trusting yourself less, start by sharing that experience with someone you trust.
How can I tell if I'm being gaslit?
There's no set diagnostic test. Ask yourself whether you often doubt your memory, censor yourself before speaking, apologize without knowing why, or feel less confident even outside that relationship. Writing down what happens and checking with someone you trust can make things clearer.

Sources

  1. National Institute of Korean Language, Urimalsaem dictionary · entry for gaslighting (checked 2026-10-25)
  2. Sweet (2019), The Sociology of Gaslighting, American Sociological Review
  3. Wikipedia · Gas Light (1938 play by Patrick Hamilton)
  4. Wikipedia · Gaslight (1944 film)

This guide shares mental wellness information. If you are in immediate danger, contact emergency services where you are. Support and contact information.

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