# retroaction

> English word · Noun

## Definitions
1. Any action that has an influence due to a past event
2. An opposing action; a reaction

## Etymology
From retro- + action.

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