First the word infidel is an incorrect translation of the word Kafer. The word Kafer simply means a disbeliever so it's not an isult it's a status. If we are from two different faith communities so I'm a disbeliever in some of the issues in your faith and you are a disbeliever in some of the issues in my faith.
The Quran defines an infidel as someone who does not believe in or follow the teachings of Islam.
Infidel in Islam is not regarded as offensive. In Quran and per Islam religion, the Arabic or Islamic corresponding source word of infidel is 'kafir'. Kafir means one who "covers", in the sense of hiding. Thus, In Islam and Quran, kafir means one who covers, intentionally, the truth that God is the one and only one God, the Creator. Hence, according to Islamic religion, the term kafir or infidel refers to the person who does not recognize (or does not believe in) the one and only God (Allah). Accordingly, kafir or infidel includes the polytheists, hanotheists, and atheists. Any Christian or Jew, who believes in one and only one God, is known in Islam religion and in Quran as one of " the people of the book" where book means one of God holy books as the Bible, the Torah, and/or any of Heaven books. In Islam, kafir or infidel can be used to refer to Hindus, Buddhist, Sikhs, pagans, agnostics, and atheists.
The Quran says nothing of killing infidels and probably they wouldn't (until the day of judgment maybe)
Infidel
Infidel is a noun.
A heretic is an infidel.
Infidel - song - was created in 1994.
Infidel - novel - was created in 2007.
Infidel Art was created in 1995.
ask to the only one GOD, surely he will improve your quran knowledge.
The duration of Beloved Infidel is 2.05 hours.
Beloved Infidel was created on 1959-11-17.