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unfaithful

play
adjective un·faith·ful \ˌən-ˈfāth-fəl\

Simple Definition of unfaithful

  • : having a sexual relationship with someone who is not your wife, husband, or partner

  • : not accurate

Full Definition of unfaithful

  1. :  not faithful: a :  not adhering to vows, allegiance, or duty :  disloyal <an unfaithful friend> b :  not faithful to marriage vows <suspected her husband of being unfaithful> c :  inaccurate, untrustworthy <an unfaithful copy of a document>

un·faith·ful·ly play \-fə-lē\ adverb
un·faith·ful·ness noun

Examples of unfaithful

  1. <colonists who later proved to be unfaithful to the cause of independence>



15th Century

First Known Use of unfaithful

15th century



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