# Popperism

> English word · Noun

## Definitions
1. An idea or theory of Karl Popper.
2. The philosophy, collectively, of Karl Popper.

## Etymology
From Popper + -ism.

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