# immutable

> English word · Adjective · frequency rank #34,930

## Definitions
1. Unable to be changed without exception.
2. Not able to be altered in the memory after its value is set initially.

## Etymology
From Middle English immutable, from Latin immūtābilis (“unchangeable”); im- + mutable.

## Easily confused with
- **immovable** (https://plainspell.com/en/vs/immovable-vs-immutable)

## Common misspellings (12)
`immtuable`, `immuatble`, `immutabble`, `immutabel`, `immutablle`, `immutalbe`, `immutbale`, `immutible`, `immuttable`, `imumtable`, `imutable`, `mimutable`

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