# unthinkable

> English word · Adjective · IPA /ʌnˈθɪŋkəbəl/ · frequency rank #20,534

## Definitions
1. That cannot be believed.
2. Inconceivable or unimaginable; extremely improbable in a way that goes against common sense.
3. Extremely improper; extremely at odds with norms of expected behavior.

## Etymology
From un- + think + -able.

## Common misspellings (18)
`nuthinkable`, `unhtinkable`, `unnthinkable`, `unthhinkable`, `unthiknable`, `unthinakble`, `unthinkabble`, `unthinkabel`, `unthinkablle`, `unthinkalbe`, `unthinkbale`, `unthinkible`, `unthinkkable`, `unthinnkable`, `unthnikable`, `untihnkable`, `untthinkable`, `utnhinkable`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/unthinkable