unfaithful

adjective

un·faith·ful ˌən-ˈfāth-fəl

Synonyms of unfaithful next

: not faithful:

: not adhering to vows, allegiance, or duty : disloyal

an unfaithful friend

: not faithful to marriage vows

suspected her husband of being unfaithful

: inaccurate, untrustworthy

an unfaithful copy of a document

unfaithfully

ˌən-ˈfāth-fə-lē

adverb

unfaithfulness noun

Examples of unfaithful in a Sentence

colonists who later proved to be unfaithful to the cause of independence

Recent Examples on the Web On June 26, 2022, a few months shy of her daughter’s first birthday, Lisa saw on social media that her partner was being unfaithful. —

Elizabeth Koh, BostonGlobe.com, 9 Sep. 2023 When Liv finds out that Will has been unfaithful, their idyllic vacation turns into the perfect opportunity for revenge. —

Katie Bowlby, Country Living, 27 Aug. 2023 Lawson abruptly sent Bonner packing during dinner after a tense conversation that followed him admitting to having been unfaithful in his most recent relationship. —

Ryan Gajewski, The Hollywood Reporter, 7 Aug. 2023 Cardi even filed for divorce in September 2020, amid speculation at the time that the Migos rapper had been unfaithful. —

Marisa Sullivan, Peoplemag, 5 July 2023 Williams accused her spouse of being unfaithful, according to the police report. —

Teddy Grant, ABC News, 26 July 2023 Legend has it the Château de Brissac saw a double murder during the 15th century — an unfaithful wife by the name of Charlotte de Breze and her romantic partner killed by her husband. —

Alison Fox, Travel + Leisure, 26 July 2023 An 88-year-old Taunton man who shot his wife four times while falsely accusing her of being unfaithful was sentenced to 15 years in state prison after pleading guilty to second-degree murder, prosecutors said. —

John R. Ellement, BostonGlobe.com, 25 July 2023 For his part, David shared that his previous girlfriend had also been unfaithful. —

Esther Kang, Peoplemag, 10 July 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'unfaithful.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.