Gaslighting

Simple meaning

Gaslighting means making someone doubt their own memory, feelings, or sense of reality — usually on purpose.

Detailed meaning

Gaslighting comes from a 1944 film called Gaslight. In the film, a husband secretly dims the gas-powered lights in the house — and then calmly tells his wife that nothing has changed, she is imagining it. Over time, she begins to doubt her own perception. She stops trusting herself.

The film gave us one of the most useful words in modern psychology.

When someone gaslights you, they do things like:

• Deny that something happened, even when it clearly did
• Tell you your feelings are wrong or exaggerated
• Make you feel foolish for remembering events a certain way
• Insist "you're too sensitive" or "you're overreacting"

The key feature of gaslighting is that it is repeated and deliberate. A single misunderstanding is not gaslighting. Gaslighting is a pattern — and its goal is to make the other person stop trusting themselves.

It can happen in romantic relationships, families, workplaces, and even in politics.

Where to use it

It works well in:

• Describing relationship dynamics — "I didn't realise I was being gaslighted until I spoke to a friend"
• Psychology and mental health conversations — "gaslighting is a form of emotional manipulation"
• Workplace discussions — "denying feedback you gave is a form of gaslighting"

Where not to use it

Gaslighting is a serious word. Using it casually can weaken it.

Not every disagreement is gaslighting. If someone simply remembers an event differently, that is a conflict of perspectives. Gaslighting involves intent — the goal is to confuse and control, not just to disagree.

5 example sentences

1. She kept a journal because the gaslighting had gone on so long that she had begun to doubt her own memories.
2. "You're too sensitive" — repeated often enough, this phrase is one of the most common tools of gaslighting.
3. The manager gaslighted the entire team by insisting the deadline had always been Friday, despite the emails that said Monday.
4. One of the hardest things about gaslighting is that victims often blame themselves before they recognise what is happening.
5. Therapists say gaslighting is especially damaging because it attacks a person's ability to trust their own mind — the one thing they always had.

Similar & opposite words

Similar (synonyms)

Opposite (antonyms)

Shade of difference: Manipulate is broader — it means influencing someone through unfair or dishonest means, but not always by attacking their sense of reality. Gaslight is specific: the target is the person's own mind. Undermine means weakening someone's confidence or position — gaslighting is one way to undermine someone, but undermining can also happen through criticism or exclusion. Gaslighting is the most precise word when the harm is making someone doubt what they know to be true.

Memory trick

Mini story

Priya remembered clearly that her manager had praised her presentation in front of the whole team.

Three weeks later, in her performance review, he said: "I never said that. You must be confusing it with something else."

She went back and checked her notes from that day. It was there — written in her own handwriting, right after the meeting.

She realised she had not been confused. She had been gaslighted.

Knowing the word did not undo the damage. But it helped her trust herself again.

Summary

Gaslighting is a form of psychological manipulation where someone makes another person doubt their own memory, feelings, or sense of reality. It comes from a 1944 film, entered psychology in the mid-20th century, and became widely used after the 2010s. It is a serious word — most powerful when used for patterns of deliberate manipulation, not everyday disagreements. Recognising the word is often the first step to recognising the behaviour.