INFIDEL
There are several words used for those in a state of infidelity: 1. kafir كافر, one who hides or denies the truth; 2. mushrik مشرك, one who gives companions to God; 3. mulhid ملحد, one who has deviated from the truth; 4, zandiq زنديق, an infidel or zend-worshiper; 5, muhafiq منافق, one who secretly disbelieves in the mission of Muhammad; 6, murtadd مرتد, an apostate from Islam; 7, dahri دهري, an atheist; 8, wasaniy وثني, a pagan or idolater.
There are several words used for those in a state of infidelity: 1. kafir كافر, one who hides or denies the truth; 2. mushrik مشرك, one who gives companions to God; 3. mulhid ملحد, one who has deviated from the truth; 4, zandiq زنديق, an infidel or zend-worshiper; 5, muhafiq منافق, one who secretly disbelieves in the mission of Muhammad; 6, murtadd مرتد, an apostate from Islam; 7, dahri دهري, an atheist; 8, wasaniy وثني, a pagan or idolater.
Based on Hughes, Dictionary of Islam