# bad trip

> English word · Noun

## Definitions
1. An acute adverse psychological reaction to the effects produced under the influence of psychoactive substances, namely hallucinogens.

## Etymology
From bad + trip, first use appears c. 1966 in the periodical Life.

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