Definition of infidel noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈɪnfɪdəl//
; NAmE NAmE//ˈɪnfɪdəl//
(old use)
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an offensive way of referring to somebody who does not believe in what the speaker considers to be the true religion Word Originlate 15th cent.: from French infidèle or Latin infidelis, from in- ‘not’ + fidelis ‘faithful’ (from fides ‘faith’, related to fidere ‘to trust’). The word originally denoted a person of a religion other than one's own, specifically a Muslim (to a Christian), a Christian (to a Muslim), or a Gentile (to a Jew).
See the Oxford Advanced American Dictionary entry: infidel