1. past tense and past participle of gaslight; to manipulate someone psychologically so that they question their own memory, perception, or sanity.
Usage: informal; often used in psychology and relationship contexts

Examples

• She felt gaslighted after her partner repeatedly denied saying things she clearly remembered.
• The employee was gaslighted by her manager, who made her doubt her own work performance.
• He realized he had been gaslighted throughout the relationship when he finally talked to a therapist.
• Victims of gaslighting often struggle with confidence and self-trust.
• The article explained how social media can be used to gaslight entire groups of people.
• She gaslighted her friend by insisting that their previous conversation never happened.