# unfaithful

> English word · Adjective · frequency rank #26,644

## Definitions
1. Not having religious faith.
2. Not keeping good faith; disloyal; not faithful.
3. Adulterous.
4. Not honest or upright.
5. Negligent or imperfect.
6. Not faithfully rendering the meaning of the source language; incorrect.

## Etymology
From Middle English unfeithful, equivalent to un- + faithful.

## Common misspellings (15)
`nufaithful`, `ufnaithful`, `unafithful`, `unfaihtful`, `unfaitfhul`, `unfaithfful`, `unfaithflu`, `unfaithfull`, `unfaithhful`, `unfaithufl`, `unfaitthful`, `unfatihful`, `unffaithful`, `unfiathful`, `unnfaithful`

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