What does kafir mean in Islam?
My understanding of what kafir (infidel) means in Islam: Kafir means someone who covers. ie denies something. If i show you that 1 + 1 =2 and you accept inside you but outwardly you don't accept it then you have gone into denial. Assuming i showed you convincingly but you chose to deny for some vested interest. So if you disbelieve because this is what you were conditioned into then you have not become a kafir. You're only kafir if someone shows you a convincing argument which internally you accept but outwardly you deny. This is my understanding of kafir (infidel).