infidel
Syllabification: (in·fi·del)
Pronunciation: /ˈinfədl, -ˌdel/
Definition of infidel
noun
chiefly archaicadjective
Origin:
late 15th century: 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)