# true-believer syndrome

> English word · Noun

## Definitions
1. A phenomenon in which witnesses to a staged event continue to believe in its authenticity even after it has been debunked.

## Etymology
Coined by M. Lamar Keene in his 1976 book The Psychic Mafia.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/true-believer-syndrome