Gaslighting
Also known as: gaslight
A sustained pattern of denial aimed at making someone distrust their own memory of events.
Share: also:
In plain terms
Gaslighting is a sustained effort to make someone doubt their own perception. Not a single denial. A pattern of them, repeated over time, until the person starts checking their memory against someone else's account instead of trusting their own.
The name comes from the 1938 play "Gas Light" and the film adaptations that followed it, in which a husband dims the lamps in the house and tells his wife she is imagining the change. The term passed into clinical and then popular use as a description of psychological abuse.
Online, the word has drifted a long way from that. It now gets applied to disagreement, to spin, and to ordinary lying. The drift is worth resisting, because if gaslighting means any statement you believe is false, the word stops naming the thing it was coined for. Where the real pattern shows up in a relationship rather than in an argument, it is ground for people with training, not for a comment thread. This entry covers the term as it gets used in debate.
Why it works
Most disputes are settled by checking. Gaslighting works by going after the checking.
Each denial in isolation is small, calm, and plausible, which makes each one easy to concede. The effect accumulates. Once a person accepts that they misremember, every later disagreement is settled in advance, because their account is the unreliable one by default. The argument gets won without evidence ever being produced.
Canonical example
Manager, in March: "Take the client call yourself, you don't need me on it."
Manager, in June, to the team: "I never told her to run that alone. She went around me."
Manager, to her, afterwards: "You've had a lot on. I think you're remembering it the way you needed to."
Three things happen. The instruction is denied. The denial is made in front of others, so the shared record now holds two versions. Then her recall is offered as the explanation for the gap.
Any one of these could be an honest mistake. The pattern is the repetition, plus the fact that the same person is always the one who misremembers. The manager never argues about evidence. The subject is her reliability.
Counter-example (not gaslighting)
A: "You said the deadline was the 12th."
B: "I was sure I said the 15th. Check the email thread?"
Disagreeing about what happened is not gaslighting. Neither is being wrong, and neither is a flat lie. A liar misrepresents the world and can be caught by the record. Gaslighting works on a person's confidence in the record itself, so that they defer to someone else's account without checking.
"Check the email" is the opposite move. It points at an outside source that either speaker can lose to. A single confident denial, even a false one, is a dispute. It becomes something else when it is sustained, and when the subject stops being the fact and becomes your reliability.
The line: is this an argument about what happened, or an effort to make you stop trusting your own account of it?
How to fix it
If you've been linked here, the charge is probably not that you are an abuser. It's that in a disagreement you reached for the other person's memory or state of mind instead of the facts. "You're remembering it wrong." "You're being oversensitive." "That never happened," said with enough certainty to close the subject. Keep the dispute on the record instead: what was written, when, and by whom. "I remember it differently, let's look" costs you nothing, and if you turn out to be right, the record shows it without anyone being told they're unreliable.
If you're on the receiving end, anchor the disagreement to something outside both of you, the message or the calendar entry or the meeting notes, and write things down while they're fresh. If you used the word for a single argument or a lie, a specific description will carry further than a label: "that contradicts what you wrote on Tuesday" is harder to shrug off. And if what you are describing is the sustained kind, that is a matter for a professional rather than a thread.