# ignorantia juris non excusat

> English word · Phrase

## Definitions
1. Ignorance of the law is not a valid excuse.

## Etymology
Borrowed from Latin ignōrantia factī excūsat, ignōrantia jūris nōn excūsat (“ignorance of fact excuses, ignorance of law does not excuse”).

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