# unbreathable

> English word · Adjective

## Definitions
1. Not suitable for breathing.
2. Not letting air seep through.

## Etymology
From un- + breathable.

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