The word "nonbeliever" is correct and usable in written English
You can use it to refer to a person who does not accept or adhere to a particular religious faith or doctrine, for example: "The nonbeliever found solace in his own philosophical views."
In response to a search by the Secular Coalition for America to find the most prominent nonbeliever holding political office, he said that he looked forward to working with the group "to stop the promotion of narrow religious beliefs in science, marriage contracts, the military and the provision of social services".
In the Middle Ages the little owl was used as a symbol of the "darkness" before the coming of Christ; by further extension it was used to symbolize a nonbeliever who dwells in this darkness.
When a person leaves Scientology and their family members stay, the family is often encouraged to "disconnect" from the offending nonbeliever.
These questions may thus be said to open the door to rational theistic belief while still leaving the nonbeliever waiting for a positive impetus to go through that door.
Nobunaga was a nonbeliever; his attitude toward Christianity was frankly political.
Thus, they could confront the possibility of death with greater equanimity than could a nonbeliever, for whom death was the end of existence.
Among the early reviewers, only P. L. Travers — who had, with a symmetry that makes the nonbeliever shiver, written an equivalent myth for England in her Mary Poppins books — really grasped the book's dimensions, or its importance.
"They would be every day in our living room — Khalil and Hisham — saying, 'You have to kill the kufar, the nonbeliever.
Afif, who is seventy-two, says that he was reading the Koran one day, fifty or so years ago, when he noticed a series of verses in which Allah warns of the fate that awaits the nonbeliever on Judgment Day: Soon will I cast him into Hell-Fire.
The secular authorities ruled that this was a matter for the Islamic court, but, of course, no Islamic court (whose authority she, as a nonbeliever, no longer recognized) would ever accede to apostasy.
