definition infidel islam
Infidel (literally unfaithful) is a pejorative term used in certain religions for those who do not believe the central tenets of one's own religion, are members of another religion, or are not religious.he term infidel, kafir in Islam, is broad. One group is the so-called murtadd, who are variously translated as apostate or renegades. For renegades, Islamic law prescribes death, with the opportunity first of obeying the demand to return to Islam.