Is it permissible for a Muslim to greet the disbelievers with greetings such as Good morning or Good evening first when meeting?
No dont give the disbeliever the greetings first. He should walk pass the disbeliever without giving him the greetings. Perhaps the person with intellect can understand that the reason hes prohibited from receiving greetings of peace is because hes a Kafir. A Kafir doesnt believe in the religion of Muhammad (peace and blessings be upon him). By not giving the Kafir the greetings he is pulled to Islam. The Prophet (peace and blessings be upon him) said, When you meet them dont give them the greetings first.
Translated by: Abu Aaliyah Abdullah ibn Dwight Lamont Battle