Definition of unfaithful adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ʌnˈfeɪθfl//
; NAmE NAmE//ʌnˈfeɪθfl//
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unfaithful (to somebody) having sex with somebody who is not your husband, wife or usual partner Have you ever been unfaithful to him? She remained loyal to her unfaithful husband. opposite faithful See related entries: Separation
See the Oxford Advanced American Dictionary entry: unfaithful