The word gaslighting is everywhere now — on late-night shows, in headlines, and in everyday conversation. A recent quip on Jimmy Kimmel Live! about President Trump “gaslighting” Americans over rising fuel costs illustrates how the term has jumped from psychiatric and academic use into broad public discourse. That spread has helped people name a painful experience, but it has also blurred the concept when the label is applied to ordinary disputes.
At its core, gaslighting is a form of psychological abuse meant to undermine someone’s trust in their own perceptions and judgment. Psychoanalyst Robin Stern, who wrote The Gaslight Effect, cautions that it is not the same as a routine disagreement. Gaslighting is a deliberate attempt to make another person doubt their reality — to reshape what they believe happened or what they feel.
Sociologist Paige Sweet describes it as “crazy-making”: a pattern of behavior in which someone seeks to make you, or others, conclude that you are unstable or mistaken. Lying may be one tool used, but there’s an important difference: ordinary lying aims to convince you of a falsehood, whereas gaslighting aims to erode your capacity to trust yourself. Scholar Kate Abramson puts it similarly — gaslighting targets someone’s ability to rely on their own experiences, not simply to persuade them of a particular claim.
When gaslighting works, victims often internalize blame or begin to think they’re imagining things. That loss of confidence in one’s own memory, perception, or judgment is the central harm of the tactic.
The term comes from the 1930s play Gas Light and the more famous 1944 film Gaslight, in which a husband manipulates his wife — moving objects, denying events, and insisting she is forgetful — to convince her she’s losing her mind while he searches their home for hidden valuables. In the movie, the dimming of the household gas lights becomes an important clue: the wife notices the lights dim when her husband leaves, and she needs confirmation from an outsider (a police inspector) to reconnect her observations and reclaim her sense of reality. That cinematic rescue helps explain why having a name for the phenomenon can be freeing for real victims.
Scholars picked up the term in later decades — anthropologist Anthony Wallace used it in 1961 — and it gradually entered clinical language as a way to describe tactics used by abusers to gain and maintain control.
In real life, gaslighting is often subtler than the film’s clear-cut villainy. It feeds on uncertainty and small, repeated contradictions: dismissals of your feelings, denials of what you remember, or reframing events so you question yourself. Perpetrators aren’t always driven by maliciousness alone; for some, these behaviors can be an attempt to protect themselves or gain power in a relationship.
Research indicates that women report being victimized in these dynamics more often, in part because socialization encourages agreeableness and therapy-seeking — traits that can make people more likely to doubt themselves when challenged and more likely to seek help afterward.
Learning the term can be a turning point. Naming gaslighting gives people language to describe an experience that can feel indescribable and isolating, and that recognition is often the first step toward setting boundaries and seeking support. Recovery, however, is gradual. Because successful gaslighting damages a person’s ability to trust their own perceptions, rebuilding that trust takes time, validation, and sometimes outside help.
Experts urge precision in how we use “gaslighting.” Overapplying the label risks diluting its seriousness and may make it harder for genuine victims to be believed. Conversely, dismissing or minimizing the term can invalidate people who are experiencing a very real form of abuse. As Stern notes, when someone gradually conforms to another person’s version of reality and gives up pieces of themselves, the result can be deeply destructive. Using the word carefully preserves its power to identify real harm — and to point toward paths for reclaiming one’s reality.